4:31 PM O +234 905 998 9551 Just now دل Given that a and B are acute angles with sin - and tan d sin(-), tan(a-B) Find the v Ib. Find the values of 0 between 0 and 360' that satisfy the equation sin' 20+2 sin 20+1-0. 2a. A person standing on the edge of one bank of a canal observes a lamp post on 152cm above the ground. The angle of other bank of the canal. The person's eye level is elevation from the eye level to the top of the lamp post is 12° and the angle of depression from eye level to the bottom of the lamp is 7° 1) How high is the lamp post? ii) How wide is the canal? 22b. Prove that tan 6+ cot 8 sec 6 coseco. 3a. Find the total surface area of 23b. Find the general solution of sin³ 0+ cos 20 Reply n hose diameter is 15cm and height 24cm. ✓ (cos ẞ+sin B)(cosa + sin a) and hence prove that о 4a Show that cos(a cos 40+ sin 66 of the line passing through d perpendicular to the line✓ equation is given by -8x+6y+5-0. ), D(-1,-8) in that LF , 16cm in diameter ||| =