1.

When, sinA+sinB =2 then what's the value of cosA+cosB ?​

Answer»

Answer:

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



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