If `costheta-sintheta`=`sqrt2sintheta` then prove that `costheta+sintheta=sqrt2costheta`
668 views · Published 11 October 2018 · 1:56 · Indexed 3 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `costheta-sintheta`=`sqrt2sintheta` then prove that `costheta+sintheta=sqrt2costheta`
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