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Sin (π/2+cos-1 1/√5)

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Sin (π/2+cos-1 1/√5)

Posted by Queen? ? 6 years, 2 months ago

CBSE > Class 12 > Mathematics

4 answers

Queen? ? 6 years, 1 month ago

Write ans 1/√5

Miss Mor 6 years, 1 month ago

Ans. Is 1/√5 As sin(π/2 +x)= cosx Sin(π/2+cos-1 1/√5)= cos(cos-1 1/√5) And cos(cos-1 1/√5)= 1/√5

Khuskaran Sidhu 6 years, 1 month ago

-sin 2/√5

Riti Bansal 6 years, 2 months ago

-π/2

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