Question

cos 45 cos 30 + sin 45 sin30

Answer 1

Ans............
cos 45×cos 30 +sin45 ×sin 30
1/√2×√3/2. + 1/√2× 1/2
√3/2√2 +1/2√2
(√3+1)/(2√2) or 0.965

Answer 2

Answer:(√3 +1) /2√2

Step-by-step explanation:

the value of cos 45° cos 30° + sin 45° sin 30°

⇒$\frac{1}{\sqrt{2}}*\frac{\sqrt{3}}{2}+\frac{1}{\sqrt{2}}*\frac{1}{2}\\\\\frac{1}{\sqrt{2}}(\frac{\sqrt{3}+1}{2})\\\\\frac{\sqrt{3}+1}{2\sqrt{2}}$