Mathematics
From the figure (ii) given below, find the values of x and y in terms of t-ratios of θ.
Related Questions
Assertion (A): If x = a cos θ + b sin θ and y = a cos θ - b sin θ, then x2 + y2 = a2 + b2
Reason (R): cos2θ + sin2θ = 1.
Assertion (A) is true, Reason (R) is false.
Assertion (A) is false, Reason (R) is true.
Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct reason for Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct reason (or explanation) for Assertion (A).
From the figure (i) given below, calculate all the six t-ratios for both acute angles.
From the figure (1) given below, find the values of :
(i) sin ∠ABC
(ii) tan x - cos x + 3 sin x
From the figure (2) given below, find the values of :
(i) 5 sin x
(ii) 7 tan x
(iii) 5 cos x - 17 sin y - tan x
