Question 1075475
The solution has to be EXACT, with the theta given in units of pi. Write the expression in terms of sine only.
sin x + cos x 
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It's not an equation, so nothing to solve.
There's x, but no theta.
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We understand exact, no need for the CAPs.
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sin x + cos x = {{{sin(x) + sqrt(1 - sin^2(x))}}}