For Cosine Rule of any triangle ABC, b² is equal to
For Cosine Rule of any triangle ABC, c² is equal to
If cos 55° and sin 55° = 0.8 each then answer of 3 cos 125° + 5 sin 125° is
By expressing cos 82° in terms of trigonometrical ratios, answer will be
If cos 55° and sin 55° = 0.8 each then answer of cos 125° + 5 sin 55° is
Considering Cosine rule, cos C is equal to
By evaluating 4 sin 25° + 5 tan 35°, answer will be
An image of a statue appears to be 12.6 cm behind a concave mirror with focal length 14.5 cm. distance between mirror and statue is
If cosine is 0.8 then value of acute angle is
If a = 9.7 cm, angle B = 64° and c = 8.8 cm then area of ? ABC is
If sine is 0.896 then value of acute angle is
By expressing cos 113° in terms of trigonometrical ratios, answer will be