Trigonometry Answers

Two points, A and B, are 526 apart on a level stretch of road leading to a hill. The angle of elevation of the hilltop from A is 26°30', and the angle of elevation from B is 36°40'. How high is the hill

if cosec alpha +cot alpha =2√3than prove that cos alpha =2\√5

cos3tita+3costitasin2tita=x‚sin3tita+3sintitacos2tita=y

if cosec alpha +cot alpha =2√3 than prove that cos alpha =2\√5

Two hunters A and B of e same height of 1.6 tall were standing on a horizontal plane at the opposite direction. The hunters sighted a bird on top of
a coconut tree of height 8m standing between them, The angle of elevation of the two hunters A and B are 30 degree and 60 degree respectively 1(a)Sketch a diagram to illustrate this information. 1(b)Which of the two hunters
Is closer to the coconut tree.

If sin4B + sin2B =1 then prove that tan4B - tan2B =1.

Prove that sec(3π/2).sec(θ - 5π/2) + tan(5π/2 + θ ).tan(θ - 3π/2) = (-1)

Sin^2a+cos^2a.cos2b=cos^2b-sin^2b.cos2a

If acos^2(θ) + bsin^2(θ) = c. Show that tan^2(θ)= (a-c)/(c-b)

If sin x + sin y = √3 (cos y - cos x )
Find value of sin 3x + sin 3y