Question

if 2 cos 2a=√3 and a is acute, find a​

Answer 1

Step-by-step explanation:

1

16. If x-1 =3+ 2V2, the value of x3

3

X so

x=3and y=6

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Answer 2

Step-by-step explanation:

2 cos 2a = _/3

cos 2a = _/3/2

we know that cos 30° = _/3/2

so, 2a = 30

a = 30/2

a = 15°