UPSKILL MATH PLUS

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27. Five mark exercise problems III

1. If \(cos \ A = \frac{3}{5}\), then find the value of \(\frac{sin \ A - cos \ A}{2 tan \ A}\).

Answer:

\(\frac{sin \ A - cos \ A}{2 tan \ A} =\)

\frac{i}{i}

2. If \(cos \ A = \frac{2x}{1 + x^2}\), then find the values of \(sin \ A\) and \(tan \ A\) in terms of \(x\).

Answer:

\(sin \ A =\)

\frac{i - i^{i}}{i + i^{i}}

\(tan \ A =\)

\frac{i - i^{i}}{i x}

Did you find an error?