If cos x = y cos (a+x), Prove that, `(d^2y)/(d x^2) = 2 sin a sec^2(a+x) tan(a+x)`
1,023 views · Published 11 October 2018 · 3:55 · Indexed 2 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If cos x = y cos (a+x), Prove that, `(d^2y)/(d x^2) = 2 sin a sec^2(a+x) tan(a+x)`
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