Question

in triangle abc, angle b is equal to 90 degree if tan a is equal to 1 then 2 Sin A cos A is equal to​

Answer 1

Answer:

Hey mate !

Here's your answer !

tanA = 1

A = 45°

2sinAcosA = 2×sin45×cos45

= 2 ×1/√2 × 1/√2

= 2× 1/2

= 1