SECTION 9.3 SECTION EXERCISES 731 For the following exercises, use Figure 5 to find the requested half and double angles. 5 Ө 12 Figure 5 24. Find sin(20), cos(20), and tan(20). 25. Find sin(2a), cos(2a), and tan(2a). (부) cos(부), and () () cos ( cos (), and tan 26. Find sin tan 27. Find sin COS COS For the following exercises, simplify each expression. Do not evaluate. 29. 2 cos (37°) – 1 30. 1 – 2 sin?(17°) 28. cos²(28°) – sin²(28°) 33. 6 sin(5x) cos(5x) 31. cos (9x) – sin?(9x) 32. 4 sin(8x) cos(8x) For the following exercises, prove the identity given.

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Q: Could you also solve (d) please

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Q: Please solve (b)

A: Given

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Q: thanks for the help but could you solve for d as well as I asked?

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A: Explanation of the answer is as follows

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A: 5x(2+1) = 30

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Q: Solve: 5|4x - 2|+ 4 < 9

A: Given inequality can be simplified as follows.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.