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If tantheta=a/b , then (asintheta+bcosth...

If `tantheta=a/b` , then `(asintheta+bcostheta)/(asintheta-bcostheta)` is equal to (a) `(a^2+b^2)/(a^2-b^2)` (b) `(a^2-b^2)/(a^2+b^2)` `(c) (a+b)/(a-b)` (d) `(a-b)/(a+b)`

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RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS-All Questions
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  2. If theta is an acute angle such that costheta=3/5 , then (sinthetatant...

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  3. If tantheta=a/b , then (asintheta+bcostheta)/(asintheta-bcostheta) is ...

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  7. If tantheta=1/(sqrt(7)) , find the value of (cos e c^2theta-sec^2th...

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  8. If tantheta=3/4, then cos^2theta-sin^2theta= (a) 7/(25) (b) 1 (c) -7/...

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  14. If A and B are complementary angles, then (a) sinA=cosB (b) cosA=s...

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  15. If xsin(90^@-theta)cot(90^@-theta)=cos(90^@-theta) , then x=

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