4 years ago

The value of sin^2 30° - cos^2 30° is

Mathematics

2 answers:

natulia [17]4 years ago

7 0

Answer:

-1/2

Step-by-step explanation:

Im not going to go into detail about how to compute sin30 and cos 30, but know that sine and cosine are just the ratios between the sides of a 30-60-90 triangle with a hypothenuse of 1.

With that being said:

sin^2 30 - cos^2 30

= (1/2)^2 - ((sqrt3)/2)^2

= 1/4 - 3/4

= -1/2

Ber [7]4 years ago

7 0

Answer:

-1/2

Step-by-step explanation:

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The value of sin^2 30° - cos^2 30° is​

The value of sin^2 30° - cos^2 30° is