1.

A :sin^(2) 5^(@) + sin^(2) 10^(@) + ..... + sin^(2) 85^(@) =17//2 R : If A+B=90^(@) , thensin^(2) A + sin^(2) B=1

Answer»

A is true , R is true and R is CORRECT explanation of A
A is true , R is trueand R is not correct explanation of A
A is true , R is false
A is false , R is true

ANSWER :A


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