Question

a.given that cos x=0≥ x ≥90°,calculate x
b.if sin (x+30°)= cos 40°,find x
c.the angle of elevation of the top a vertical pole from a point 63m east of the base of the pole is 30°. from another point due west of the pole,the angle of elevation of the top is 60°
i.draw a sketch diagram to illustrate the information.
ii.calculate ,correct to three significant figures, the distance of the second point from the pole.

Answer 1

Answer:

Please forgive me!

Step-by-step explanation:

I don't know the answer