Question

cos^2 30° - sin^2 30°= cos 60°​

Answer 1

Answer:

True

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

are you asking to prove this.

from the trigonometry table we get cos 2 30 is equal to

√3/2 whole square equal to 3/4

sin square 30 is equal to 1/4

3/4-1/4 is equal to 2/4 equal to 1/2

cos 60 = 1/2

hence proved.

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