3 years ago

Find the value of y. 28.5 22.4 25.8 24.2

1 answer:

8 0

I hope this helps you

cos75=cos (45+30)

cos45.cos30-sin45.sin30

square root of 2/2.square root of 3/2-square root of 2/2.1/2

square root of 6/4-square root of 2/4

0,61-0,35

0,26

y^2=x^2+z^2-2.x.z.cos75

y^2=25^2+ (10,5)^2-2.25.10,5.0,26

y^2=625+110,25-136,5

y^2=598,75

y~24,4

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