If sin @+ sin b = 2, Then the value of cos2 @ + cos2 b =
poweruffgirls11228:
is that 2 cosA or cos ^2(square)A
its cos ^2a
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check the attachment
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Step-by-step explanation:
90
There is only 1 possibility for sin A +sin B to be equal to 2.
max value of sinθ is 1...
so sin A = 1 and sin B = 1.....
therefore A = B = 90
sin (A+B) = sin (90+90) = sin 180 = 0
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