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Evaluate sinA+cosA=√3,then prove that tanA + cotA=1 |
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Answer» Now tan=sin /cos and cot =cos /sinTan+cot =sin2+cos2 /sin*cos=1/1=1 (Sin +cos) 2=3Sin2 +cos2+2sin*cos =32sin*cos=2Sin *cos =1 |
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