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(+ e ) SOD= {!ďŹ ÂĽ X) - |
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Answer» Sin(cot^-1(x+1)=cos(tan^-1(x) =>sin(sin^-1(1/sqrt(x^2+2x+2)))=cos(cos^-1(1/sqrt(1+x^2))) => 1/sqrt(x^2+2x+2)=1/sqrt(1+x^2) => x^2+2x+2 = 1+x^2 => 2x+1 = 0 Solving the above equation we get x=-1/2. HIT THE LIKE BUTTON! |
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