Question

sin 45° sin 30° +cos 45° cos 30°

Answer 1

Answer:

−0.759687912859 this I got the answer

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

given :

sin 45° sin 30° +cos 45° cos 30°

to find :

30° +cos 45° cos 30°

solution :

• cos 45xcos 30 +sin45 xsin 30

• 1/√2x√3/2. + 1/√2x 1/2

• √3/2 √2+1/2 √2

• (√3+1)/(2√2) or 0.965