Question

68. If 7 sin²0 - cos20 +2 sine = 2,0° <o<90°, then
sec 20 + cot 20
the value of
cosec 20+tan 20
is :​

Answer 1

Explanation:

Sine and cosine — a.k.a., sin(θ) and cos(θ) — are functions revealing the shape of a right triangle. Looking out from a vertex with angle θ, sin(θ) is the ratio of the opposite side to the hypotenuse , while cos(θ) is the ratio of the adjacent side to the hypotenuse .