Solve the following equations. Find all the solutions in terms of radians. Give exact answers.  a. 2 cos x/2 - √2 = 0  b. -2 sec x = 2 - 3 sec x  c. cos ( x + π/4) + cos ( x - π/4) = 1

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A: Solution: 8 sin(t)-3=6sin tSolve by substitutionLet sin(t)=u8u -3=6u2u=3u=32substitute backsin(t)=32

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A: I attached the picture of solution

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