# CBSE Class 10 Answered

Prove that (tanΦ+1/cosΦ)² + (tanΦ - 1/cosΦ)² = 2(1+ sin² Φ/1- sin²Φ)

Asked by pdcavita | 18 Nov, 2017, 12:42: PM

Expert Answer

Answered by Rashmi Khot | 05 Dec, 2017, 03:59: PM

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