If SinA + SinB =2 where 0°<A<90° and 0°<B<90° then find the value of CosA + CosB
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Answer:
0
Step-by-step explanation:
SinA + SinB = 2
It means A and B are 90 because sin90 = 1
sin A = 1/Cos A and Sin b = 1/cos B according to trignomatry
1/Cos A + 1/ Cos B = 2
Cos A + Cos B = 2 x Cos A Cos B
Cos A + Cos B = 2 x Cos 90 x Cos 90 = 0 Answer
Answered by
0
Step-by-step explanation:
the answer is 0 ok na
zero
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