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If sin–1 x + sin–1 y + sin–1 z = π, then x4 + y4 + z4 + 4x2y2z2 = k (x2y2 + y2z2 + z2x2), where k is equal to -
Sum of maximum and minimum values of (sin–1 x)4 + (cos–1 x)4 is -
The range of the function, f (x) = cot–1x + sec–1x + cosec–1x, is
The value of x for which sin[cot–1(1 + x)] = cos(tan–1x) is
The equation (sin–1x)3 + (cos–1x)3 = απ3 has no solution for
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209 videos|443 docs|143 tests
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