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(A) sin^(2)5+sin^(2)10+......+sin^(2)85=...

(A) `sin^(2)5+sin^(2)10+......+sin^(2)85=(17)/(2)`
(R) : If `alpha+ beta=90^(@)` then `sin^(2)alpha+ sin ^(2) beta=1`

A

A is true, R is true and `R rArr A`

B

A is true, R is true and `R cancel rArr A`

C

A is true, R is false

D

A is false, R is true

Text Solution

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The correct Answer is:
A
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