Find all the solutions in the interval [0,360)
10cos^2+13cosx+4=0.
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What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

What is the product? a-3/15a × 5/a-3