If `cos^(-1)x+cos^(-1)y+cos^(-1)z=pi` , where `-1 lt=x,y,z lt=1`, then find the value of `x^2+y...
4,230 views · Published 12 October 2018 · 3:21 · Indexed 5 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `cos^(-1)x+cos^(-1)y+cos^(-1)z=pi` , where `-1 lt=x,y,z lt=1`, then find the value of `x^2+y^2+z^2+2xyz`
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