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Harlamova29_29 [7]
2 years ago
12

Write the expression as one involving only sin x and cos x. sin 2x + cos x

Mathematics
1 answer:
AfilCa [17]2 years ago
6 0

Answer:

sin 2x + cos x =  2 sin x cos x + cos x = (2 sin x + 1)cos x

Step-by-step explanation:

Given the expression: sin 2x + cos x,

then we can use the formula: sin 2x = 2 sin x cos x, which gives:

sin 2x + cos x =  2 sin x cos x + cos x = (2 sin x + 1)cos x

So there you have two expressions in terms of sin x and cos x, as requested. :D

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