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From the top of the buiding 60 m high, the angle of elevation of the top of a vertical pole is 15. At the bottom of the building the angle of elevation of the top of the pole is 35. Find (a) the height of the pole and (b) the distance of the pole from the building.
Complete the identity
sin(a-b)/cos a cos b=?
Complete the identity?
sinx/cosx + cosx/sinx=
A ship leaves port with a bearing of N 55 degrees W. After traveling 16 miles, the ship then turns 90 degrees and travels on a bearing of S 35 degrees W for 5 miles. At that time, what is the bearing of the ship from port? Round to the nearest tenth.
A radio transmission tower is 150 feet tall. How long should a guy wire be if its to be attached 11 feet from the top and is to make an angle of 33 degrees with the ground? Give your answer to the nearest tenth of a foot.
Find the exact value of the expression?
sin a= 24/25, a lies in quadrant 2 and cos B=2/5, B lies in quadrant 1. Find cos(a-b).
Find exact value of the expression?
tan a = 24/7, a lies in quadrant 3 and cos B =-15/17, B lies in quadrant 2. Find sin(a+B)
Cos^π/8 +cos^3π/8+ cos^5π/8+cos^7π/8=2
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