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Prove 2 tan-¹ [√a-b/ a+ b …

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Prove 2 tan-¹ [√a-b/ a+ b tan x/2] = cos-¹ [b+a cos x/ a+b cos x ]

Posted by Anay Patidar 7 years, 10 months ago

CBSE > Class 12 > Mathematics

4 answers

Mimansha Rawat 7 years, 10 months ago

Itni sari square root se i am getting confused

Mimansha Rawat 7 years, 10 months ago

I am unable to understand the question properly

Mimansha Rawat 7 years, 10 months ago

Yep

Lekha Raj 7 years, 10 months ago

It's very lengthy..........

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