Question

Cos 45 -sin 45 × sin 30

Answer 1

Heya mate, Here is ur answer

We know that

Cos 45=1/√2

Sin 45=1/√2

Sin 30=1/2

Cos 45 - sin 45 × sin 30

$= \frac{1}{ \sqrt{2} } - \frac{1}{ \sqrt{2} } \times \frac{1}{2}$

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


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


$= \frac{1}{2 \sqrt{2} }$



Warm regards

@Laughterqueen

Be Brainly✌✌

Answer 2

Cos 45=1/√2
sin45=1/√2
sin 30 =1/2
cos 45-sin 45 *sin 30
= 1/√2-1/√2*1/2
1/√2- 1/2√2
=
$1 \div 2 \sqrt{2}$