+3 votes
in JEE by kratos

IF x = sin-1(b6 + 1) = cos-1(b4 + 1) + tan-1(a2 + 1) then find the value of sin(x + π/4) + cos(x + π/4)

1 Answer

+4 votes
by kratos
 
Best answer

We have

x = sin-1(b6 + 1) = cos-1(b4 + 1) + tan-1(a2 + 1)

It is possible only when a = 0

Thus, x = sin-1(1) + cos-1(1) = tan-1(1)

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