If 2\(\sqrt {5}\) sinθ = 2
find the value of (tanθ + sec2θ).
Answer & explanation
Correct answer: option 3
2\(\sqrt {5}\) sinθ = 2
sinθ = \(\frac{2}{2\sqrt {5}}\)=\(\frac{P}{H}\)
B=\(\sqrt {(H)^2-P^2}\)
B=\(\sqrt {(2\sqrt {5})^2-(2)^2}\)
B = 4
Now, (tanθ + sec2θ)
\(\frac{2}{4}\)+(\(\frac{2\sqrt {5}}{4}\))2=\(\frac{1}{2}\)+\(\frac{5}{4}\)
= \(\frac{7}{4}\)