1.

If 3cot A = 4, find the value of Cos A- Sin A.

Answer» Cos A=b/h=4/3
3cotA=4So,cotA=3/4=b/pH=?H=5CosA=b/h=3/5SinA=p/h=4/5Value=cosA-sinA =3/5-4/5 =-1/5Where b is base ,p is perpendicular and h is hypotenuse
CotA=4/3, then h=5 so cos a -sin a=1/5


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