If x^2 + 1/x^2 = 18 , find the value of x^3-1/x^3
2 answers:
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Answer:
- First, you want to divide the numerator and denominator by the cosine(x), and afterwards, it looks like this...
- Include 45 as one of the parameters and correlate with <em>tan</em>.
- Next, you want to multiply the numerator and denominator by the conjugate of the denominator, in this case, <em>tan x + tan 45.</em>
- Lastly, simplify, and you have the answer as <em>tan(45 + x)</em>
