Prove: `(sinx+cosx)/cos^3x=tan^3x+tan^2x+tanx+1`
1,656 views · Published 12 October 2018 · 1:37 · Indexed 26 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Prove: `(sinx+cosx)/cos^3x=tan^3x+tan^2x+tanx+1`
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