1.

(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

Answer»

A is TRUE, R is true and `R rArr A`
A is true, R is true and `R CANCEL rArr A`
A is true, R is false
A is false, R is true

Answer :A


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