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Grade 11Trigonometry

can someone do this question
Solve: sin-1 cos (sin-1 x) = 3 

Profile image of Pukhraj Singh
7 Years agoGrade 11
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1 Answer

Profile image of Aditya Gupta
7 Years ago
the question that you have asked is:
sin-1(cos(sin-1x))=3
but this will have no solution because range of sin-1 function is [-π/2,π/2]
but 3>π/2.
hence there are no real solutions