`cos^(-1)(p/a) + cos^(-1) (q/b) =alpha` then `p^2/a^2-(2pq)/(ab)+q^2/b^2` equals
1,681 views · Published 12 October 2018 · 3:28 · Indexed 26 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW `cos^(-1)(p/a) + cos^(-1) (q/b) =alpha` then `p^2/a^2-(2pq)/(ab)+q^2/b^2` equals
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