Question

Find the value of:
2 sin 45°- cos 45°​

Answer 1

Answer:

2sin45-cos45

2(1/√2)-(1/√2)

√2-1/2

(2√2-1)/2

Answer 2

$2( \frac{1}{ \sqrt{2} } ) - \frac{1}{ \sqrt{2} } \\ = \frac{1}{ \sqrt{2} }$