CBSE Class 10 - Maths - Trigonometry Question - If a sec𝜃 + b tan𝜃 + c = 0 and p sec𝜃 + q tan𝜃 + r = 0, prove that: (𝑏𝑟 − 𝑞𝑐)² − (𝑝𝑐 − 𝑎𝑟)² = (𝑎𝑞 − 𝑏𝑝)²(#eduvictors)

CBSE Class 10 Maths: Trigonometry Question

Question: If a sec𝜃 + b tan𝜃 + c = 0 and  p sec𝜃 + q tan𝜃 + r = 0,  prove that:  
                                  (𝑏𝑟 − 𝑞𝑐)² − (𝑝𝑐 − 𝑎𝑟)² = (𝑎𝑞 − 𝑏𝑝)²

Answer:

CBSE Class 10 Maths Trigonometry Question: If sin𝜃 + sin²𝜃 = 1, find the value of cos¹²𝜃 + 3cos¹⁰ 𝜃 + 3 cos⁸𝜃 + cos⁶𝜃 + 2 cos⁴𝜃 + 2 cos²𝜃 - 2 (#eduvictors)

Class 10 - Trigonometry Identity Based Question

Question: If sin𝜃 + sin²𝜃 = 1, find the value of 
        cos¹²𝜃 + 3cos¹⁰ 𝜃 + 3 cos⁸𝜃 + cos⁶𝜃 + 2 cos⁴𝜃 + 2 cos²𝜃 - 2 

CBSE Class 10 - English Term-I Sample Question Paper (Set-2) (2019-20) (#cbsenotes)(#eduvictors)

CBSE Class 10 - English
 Term-I Sample Question Paper (Set-2)
 (2019-20) 

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on English subject to assess your knowledge about the subject.

For studying you may refer following help guides:

1. All in One English Language & Literature Guide (2019-20)

2. Full Marks - Class 10 English (Language and Literature) 2019 

CBSE Class 11 - English (Hornbill) - Chapter - 2 : “We’re Not Afraid to Die...If We can All be Together” - Chapter Summary (#CBSEClass11English)(#eduvictors)

Chapter - 2: “We’re Not Afraid to Die...If We can All be Together”

Author: Gordon Cook & Alan East

Summary

Dream Came True
A 37-year-old businessman and his own family had dreamt of sailing inside the wake of the famous explorer Captain James Cook and for the beyond 16 years the members of the own family had spent all their entertainment time honing their sea-faring skills in British waters. The narrator, his spouse Mary, son Jonathan 6, daughter Suzanne (Sue) 7, set sail from Plymouth, England to copy the round-the-world voyage earlier made by Captain James Cook.

The first Leg Covered
The first leg of 1, 05,000 km spanning over three years, passed pleasantly from the west coast of Africa to Cape Town. They took two crewmen, American Larry Vigil and Swiss Herb Seigler to tackle the roughest sea, the Southern Indian Ocean.

CBSE Class 10 - Hindi हिंदी (प्रश्न पत्र-२ ) Term-I Sample Question Paper (Set-2) (2019-20) (#class10Hindi)(#eduvictors)

CBSE Class 10 - Hindi हिंदी (प्रश्न पत्र-२  )
 Term-I Sample Question Paper (Set-2)
 (2019-20) 

कक्षा 10 के छात्रों के लिए अच्छे अंक प्राप्त करना बहुत महत्वपूर्ण है। इसके लिए समय सीमा के भीतर नमूना प्रश्न पत्रों का अभ्यास और प्रयास करना चाहिए।
विषय के बारे में अपने ज्ञान का आकलन करने के लिए हिंदी विषय पर एक प्रश्न पत्र इस प्रकार है।

अध्ययन के लिए आप निम्नलिखित मदद गाइड का उल्लेख कर सकते हैं:

1. All in One Class 10 Hindi (B) - 2019-20

CBSE Class 10 - English Term-I Sample Question Paper (Set-1) (2019-20) (#cbsenotes)(#eduvictors)

CBSE Class 10 - English
 Term-I Sample Question Paper (Set-1)
 (2019-20) 

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on English subject to assess your knowledge about the subject.

For studying you may refer following help guides:

1. All in One English Language & Literature Guide (2019-20)

2. Full Marks - Class 10 English (Language and Literature) 2019 

Class 10 - Chemistry - Chapter 2 - Acids, Bases and Salts (MCQs-2) (#eduvictors)(#class10Chemistry)

Acids, Bases and Salts (MCQs-2)

Class 10 - Chemistry

Q1:  Which one at the following is acidic?

(a) Lemon juice 

(b) tomatoes 

(c) Milk 

(d) All of these

Q2: Which one of the following will turn red litmus blue?

(a) Vinegar 

(b) Baking soda solution 

(c) Lemon juice

(d) Soft drinks

Q3: Which one of the following will turn blue litmus red

(a) Vinegar

(b) Lime water

(c) baking soda solution 

(d) Washing soda solution

CBSE Class 10 - Hindi हिंदी (प्रश्न पत्र ) Term-I Sample Question Paper (Set-1) (2019-20) (#cbsepapers)(#eduvictors)

CBSE Class 10 - Hindi हिंदी (प्रश्न पत्र )
 Term-I Sample Question Paper (Set-1)
 (2019-20) 

कक्षा 10 के छात्रों के लिए अच्छे अंक प्राप्त करना बहुत महत्वपूर्ण है। इसके लिए समय सीमा के भीतर नमूना प्रश्न पत्रों का अभ्यास और प्रयास करना चाहिए।
विषय के बारे में अपने ज्ञान का आकलन करने के लिए हिंदी विषय पर एक प्रश्न पत्र इस प्रकार है।

अध्ययन के लिए आप निम्नलिखित मदद गाइड का उल्लेख कर सकते हैं:

1. All in One Class 10 Hindi (B) - 2019-20

CBSE Class 10 - Social Science Term-I Sample Question Paper (Set-2) (2019-20)(#cbsepapers)(#eduvictors)

CBSE Class 10 - Social Science
 Term-I Sample Question Paper (Set-2)
 (2019-20) 

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Social Science subject to assess your knowledge about the subject.

For studying you may refer following help guides:

1. Oswal Class 10 Question Bank (Chapterwise and Topicwise) 2019-20

2. Class 10 Xam Idea Complete Course (Social Science) 2019-20

CBSE Class 10 - Social Science Term-I Sample Question Paper (Set-1) (2019-20) (#cbsepapers)(#eduvictors)

CBSE Class 10 - Social Science
 Term-I Sample Question Paper (Set-1)
 (2019-20) 

Getting good marks is very important for students of class 10. For this one must practice and attempt sample question papers within time limits.

Here follows a sample question paper on Social Science subject to assess your knowledge about the subject.

For studying you may refer following help guides:

1. Oswal Class 10 Question Bank (Chapterwise and Topicwise) 2019-20

2. Class 10 Xam Idea Complete Course (Social Science) 2019-20