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If 3 cot A = 4, check whether (1-tan^(2)...

If `3 cot A = 4`, check whether `(1-tan^(2)A)/(1+tan^(2)A)=cos^(2)A-sin^(2)A` is true or not.

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KUMAR PRAKASHAN-INTRODUCTION TO TRIGONOMETRY-EXERCISE 8.1
  1. In DeltaABC, right angled at B, AB = 24 cm, BC = 7 cm . Determine : si...

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  2. In DeltaABC, right angled at B, AB = 24 cm, BC = 7 cm. Determine : si...

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  3. In the given figure, find tan P - cot R.

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  4. If sinA=3/4 , calculate cos A and tan A.

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  5. Given 15 cot A = 8, find sin A and sec A.

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  6. Given sectheta=13/12, calculate all other trigonometric ratios.

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  7. If angleA and angleB are acute angles such that cos A = cos B, then s...

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  8. If cot theta=7/8 , evaluate: ((1+sintheta)(1-sintheta))/((1+costheta...

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  9. If cot theta=7/8 , evaluate: cot^(2)theta

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  10. If 3 cot A = 4, check whether (1-tan^(2)A)/(1+tan^(2)A)=cos^(2)A-sin^(...

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  11. In triangle ABC, right angled at B, if tanA=1/(sqrt3). Find the value ...

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  12. In triangle ABC, right angled at B, if tanA=1/(sqrt3). Find the value ...

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  13. In DeltaPQR, right angled at Q, PR + QR = 25 cm and PQ = 5 cm. Determi...

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  14. State whether the following are true or false. Justify your answer : ...

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  15. State whether the following are true or false. Justify your answer : ...

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  16. State whether the following are true or false. Justify your answer : ...

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  17. State whether the following are true or false. Justify your answer : ...

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  18. State whether the following are true or false. Justify your answer : ...

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