Question

In ∆PQR, ∠Q is a right angle PQ = 3, QR = 4. If ∠P=α and ∠R=β, then find the values of
(i) sin α (ii) cos α
(iii) tan α (iv) sin β
(v) cos β (vi) tan β

Answer 1

Answer:

$we \: know \: that \: \\ pr = 5 \\ (1). \: \sin( \alpha ) = \frac{4}{5} \\ (2). \: \cos( \alpha ) \frac{3}{5} \\ (3). \: \tan( \alpha ) \frac{4}{3} \\ (4). \: \sin( \beta ) = \frac{3}{5} \\ (5). \: \cos( \beta ) = \frac{4}{5} \\ (6). \: \tan( \beta ) = \frac{3}{4}$

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