1.

Find the value of sin^(2)1^(@)+sin^(2)2^(@)+sin^(2)3^(@)+ ----+sin^(2)87^(@)+sin^(2)88^(@)+sin^(2)89^(@)+sin^(2)90^(@).

Answer»

`44(1)/(2)`
44
`45(1)/(2)`
N.O.T.

Answer :C


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