12 most important question from trigonometry of 4 marks ....surely out of them only question will come for 4 marks?

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1.1+sec-tan/1+sec+tan=(1-sin)/cos2.cosec+cot =p ...prv tht cos=p^2-1/p^+13.asin+bcos=c......prv acos -bsin=root whole of asqare +bsquare -csquare4.whole root of (secsquare +cosecsquare) =tan +cot5.sin +cos=p and sec+cosec=q ...prv q(psqare -1)=2p6.1+sinsqare=3sincos prv tan=1or 1/27.tan +sec =l prv sec=lsqare+1) / 2l 8.sin+2cos = 1 ..prv 2sin-cos =29.tan/sec+1) + cot/cosec+1)=cosec+sec-cosec.sec10.(sin+sec)sq +(cos+cosec)sq =(1+seccosec )sq11.1/(cosec-cot) - cosec = cosec - 1/(cosec +cot)12.sin/cot+cosec = 2 + sin/cot-cosecRavi it took time to type dear ...finger started paining Do tough sums from NCERT mainbook also along these ( eg 13 and 14 and also 8.4 exercise no 5 )Best Of LuckDo these on the night b4 so u will not forget how to proove ...some questions have a easy trick among these if you want to know answer plz inform me in chat

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Hlo...kye mujhe ans mil Sakta  h ques no.12ka

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Thankyou somuch dude

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Is it for CBSE board.?????????????????????????????

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Kyun aaya ye  leaked question paper mein......:-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-).............. isliye hamesa caption mein likh Diya kro it's for practice......

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Sin/cot+ cosec-sin /cot-cosec..=2...prove this 1 nishi..it is easy..

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12 Most Important Questions from Trigonometry for 4 Marks

Trigonometry is an essential branch of mathematics that deals with the relationships between the angles and sides of triangles. It has various applications in fields such as physics, engineering, and architecture. For students preparing for exams, it is crucial to focus on important topics and questions that carry higher marks. Here are 12 important questions from trigonometry that are likely to be worth 4 marks each:

1. Prove that sin^2θ + cos^2θ = 1:
- This is a fundamental trigonometric identity that establishes the relationship between sine and cosine functions.
- It can be proven using the Pythagorean theorem or by utilizing the unit circle.

2. Find the value of sin 60°:
- This question involves applying basic trigonometric ratios to find the value of sine at a specific angle.
- The value of sin 60° is √3/2.

3. Solve for x: sin(x + 30°) = √2/2:
- This question requires solving for an unknown angle using trigonometric identities and equations.
- The value of x in this case would be 60°.

4. Find the value of tan 45°:
- This question tests the understanding of trigonometric ratios.
- The value of tan 45° is 1.

5. Prove that sec^2θ - tan^2θ = 1:
- This question involves proving a trigonometric identity using the definitions of secant and tangent functions.
- It can be done by manipulating the given expression using basic trigonometric identities.

6. Find the value of cos(90° - θ):
- This question requires applying the concept of complementary angles in trigonometry.
- The value of cos(90° - θ) is equivalent to sin θ.

7. Solve for x: cos^2(x) - sin^2(x) = 1/4:
- This question involves solving a trigonometric equation by manipulating the given expression and using trigonometric identities.
- The solution to this equation would be x = ±30°.

8. Find the value of cot 30°:
- This question tests the understanding of trigonometric ratios.
- The value of cot 30° is √3.

9. Prove that 1 + tan^2θ = sec^2θ:
- This question requires proving a trigonometric identity using the definitions of tangent and secant functions.
- It can be done by manipulating the given expression using basic trigonometric identities.

10. Solve for x: sin(2x) = √3/2:
- This question involves solving for an unknown angle using trigonometric identities and equations.
- The solution to this equation would be x = 30° or x = 150°.

11. Find the value of cos 30°:
- This question tests the understanding of trigonometric ratios.
- The value of cos 30° is √3/2.

12. Solve for x: tan(x) = 1/√3:
- This question requires solving for an unknown angle using trigonometric ratios.
- The solution to this equation would be x = 30°.

By focusing on these

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