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Earn +20 ptsQ: What is the exact value of cos 30?
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What is the exact value of cos 15?
It is: cos(15) = (sq rt of 6+sq rt of 2)/4
Find the value of a if tan 3a is equal to sin cos 45 plus sin 30?
If tan 3a is equal to sin cos 45 plus sin 30, then the value of a = 0.4.
What is the exact value of cos 70 degrees?
The exact value is an irrational number, and can't be written on paper with digits.0.34202 is less than 0.000042 percent wrong.Cos(70 deg) is an irrational number and it is impossible to give its exact value.
Using exact values find the numerical value of sin 30 degrees cos 240 degrees plus sin 210 degrees sin 300 degrees?
SQRT(3)/4 - 1/4
What is the value of the cos of 34 degrees?
cos 34o ≈ 0.829 cos 34 = 0.86074
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