यदि sin 21^(@) = (x)/(y) तो sec 21^(@) -...

यदि `sin 21^(@) = (x)/(y)` तो `sec 21^(@) - sin 69^(@)` किसके बराबर होगा ?

A

`(x^(2))/(ysqrt(y^(2)-x^(2)))`

B

`(y^(2))/(ysqrt(y^(2)-x^(2)))`

C

`(x^(2))/(ysqrt(x^(2)-y^(2)))`

D

`(y^(2))/(xsqrt(x^(2)-y^(2)))`

लिखित उत्तर

Verified by Experts

The correct Answer is:

A

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