Question

Is 2sin45° .cos45° = 1, Justify​

Answer 1

Answer:

$2 \sin(45°) \cos(45°) = 2 \times \frac{1}{ \sqrt{2} } \times \frac{1}{ \sqrt{2} } \\ = 2 \times \frac{1}{2} = \boxed1 \:\:\: \underline{ (hence \: justified)}.$