Mathematics
In a right-angled triangle, it is given that angle A is an acute angle and that tan A = 5/12 . Find the values of : (i) cos A (ii) cosec A - cot A.
Related Questions
From the figure (1) given below, find the values of :
(i) 2 sin y - cos y
(ii) 2 sin x - cos x
(iii) 1 - sin x + cos y
(iv) 2 cos x - 3 sin y + 4 tan x
In the figure (2) given below, ∆ABC is right-angled at B. If AB = y units, BC = 3 units and CA = 5 units, find
(i) sin x°
(ii) y.
In ∆ABC, ∠A = 90°. If AB = 7 cm and BC - AC = 1 cm, find :
(i) sin C
(ii) tan B
In △PQR, ∠Q = 90°. If PQ = 40 cm and PR + QR = 50 cm, find :
(i) sin P
(ii) cos P
(iii) tan R