Question

find the value of cos(cos^-1x + cos^-1y) + cos(sin^-1x + sin^-1y)

Answer 1

Answer:

We know that

If cos^-1x + cos^-1y = 2pi

then sin^-1x + sin^-1y = -pi

By substituting the known values, we get

cos(cos^-1x + cos^-1y) + cos(sin^-1x + sin^-1y) =cos(2pi) + cos(-pi)

=1 + (-1)

=0

The value of

cos(cos^-1x + cos^-1y) + sin(sin^-1x + sin^-1y) = 0.

Hopes it helps you❤️

Mark as brainliest.

Answer 2

Answer:

Please refer to the above attachment