Question

The value of 4 cos3 45°-3cos45°+ 4 sin 45°​

Answer 1

Answer:

4/√2-3/√2+4/√2

5/√2

it is the answer

Answer 2

Answer:

$4( \frac{1}{ \sqrt{2} } ) - 3( \frac{1}{ \sqrt{2} }) + 4( \frac{1}{ \sqrt{2} } ) \\ \frac{4}{ \sqrt{2} } - \frac{3}{ \sqrt{2} } + \frac{4}{ \sqrt{2} } \\ \frac{1}{ \sqrt{2} } + \frac{4}{ \sqrt{2} } \\ \frac{5}{ \sqrt{2} }$

Step-by-step explanation:

ok