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The value of tan9^@-tan2 7^@-tan6 3^@+ta...

The value of `tan9^@-tan2 7^@-tan6 3^@+tan8 1^@` is equal to

A

0

B

1

C

`-1`

D

4

Text Solution

Verified by Experts

The correct Answer is:
D
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OBJECTIVE RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
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  5. If (tan3A)/(tanA)=k, then (sin3A)/(sinA)=

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  7. If cosA=tanB, cos B=tanC, cosC=tanA, then sin A is equal to

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  8. If tanalpha is equal to the integral solution of the inequality 4x^2-1...

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  12. If x(1),x(2),x(3),...,x(n) are in A.P. whose common difference is alph...

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