Practicing Success
If sinθ - cosθ = \(\frac{7}{17}\), find the value of sinθ + cosθ |
\(\frac{8}{17}\) \(\frac{23}{13}\) \(\frac{23}{17}\) \(\frac{8}{13}\) |
\(\frac{23}{17}\) |
⇒ sinθ - cosθ = \(\frac{7}{17}\) ⇒ \(\frac{P}{H}\) - \(\frac{B}{H}\) = \(\frac{7}{17}\) ⇒ \(\frac{P - B}{H}\) = \(\frac{7}{17}\) Use triplets, (8, 15, 17) P = 15, B = 8, H = 17 ⇒ sinθ + cosθ = \(\frac{P}{H}\) + \(\frac{B}{H}\) = \(\frac{15}{17}\) + \(\frac{8}{17}\) = \(\frac{23}{17}\) |