Question

In an isosceles right angled DABC , DB =90degree . The value of 2sinAcosA​ is
please jaldi bata dejiye

Answer 1

Answer:

in an isosceles right angle ∆, other two angles are 45°.

therefore sin 45° = cos = 45° = 1/√2

hence 2 sin A cos A = 2×1/√2×1/√2

=> 2/2

=> 1