Simplify and write the trigonometric expression in terms of sine and cosine: Sim

Question

Simplify and write the trigonometric expression in terms of sine and cosine:

Simplify and write the trigonometric expression in terms of sine and cosine: rac{2+ an^2 x}{sec^2 x}-1 = (f(x))^2 f(x)=?? Find the solution(s) of the logarithmic equation ln(x+2) + ln(x-2) =0 correct to four decimal places. If there is more than one solution write them separated by commas. x=?? Solve the following equation. If necessary, enter your answer as an expression involving natural logarithms or as a decimal approximation that is correct to at least four decimal places. 2^{2x+19}=3^{x-24} x=??

Explanation / Answer

solvin f(x) = cosx

x^2-4= 1

x= 2.2360

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