Cos²(15°) - sin²(15°) = cos(15° * 2) = √(3/2 so this is the answer by using apropriate formula double angle identity
Answer:
The answer is 46.
Step-by-step explanation:
You have to substitute the value of a and c into the expression :

Let a = 10,
Let c = 4,



No cause it’s a curved line so it’s not direct
Answer:
70 and 110
Step-by-step explanation:
First angle -- 2x
Second angle -- 3x + 5
Therefore,
2x + 3x + 5 = 180
5x = 175
x = 35
Therefore, 2x -- 70
3x + 5 -------------110
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