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sin^(2) 75^(@) - sin^(2)15^(@)=...

`sin^(2) 75^(@) - sin^(2)15^(@)=`

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What is the value of sin^(2) 15^(@) + sin^(2) 20^(@) + sin^(2)25^(@) + ……… + sin^(2) 75^(@) ?

Evaluate the following and justify your answer. (i) (sin ^(2) 15^(@) +sin ^(2) 75^(@) )/( cos ^(2) 36^(@) +cos ^(2) 54^(@))

Evaluate the following and justify your answer. (i) (sin ^(2) 15^(@) +sin ^(2) 75^(@) )/( cos ^(2) 36^(@) +cos ^(2) 54^(@))

Evaluate the following and justify your answer. (i) (sin ^(2) 15^(@) +sin ^(2) 75^(@) )/( cos ^(2) 36^(@) +cos ^(2) 54^(@))

Evaluate the following and justify your answer. (i) (sin ^(2) 15^(@) +sin ^(2) 75^(@) )/( cos ^(2) 36^(@) +cos ^(2) 54^(@))

Evaluate the following and justify your answer. (i) (sin ^(2) 15^(@) +sin ^(2) 75^(@) )/( cos ^(2) 36^(@) +cos ^(2) 54^(@))

sin 75^(@) + sin 15^(@) =

The value of sin^(2)15^(@)+sin^(2)25^(@)+sin^(2)65^(@)+sin^(2)75^(@) is

Evaluate : (cot^(2)41^(@))/(tan^(2)49^(@))-2(sin^(2)75^(@))/(cos^(2)15^(@))