b Calculate the area of this piece of land 7 Solve for x in 2 Cos2x 0 06000 0 x

B calculate the area of this piece of land 7 solve

This preview shows page 1 - 2 out of 2 pages.

(b) Calculate the area of this piece of land. 7. Solve for x in 2 Cos2x 0 = 0.6000 0 0 ≤ x ≤ 360 0 . 8. Wangechi whose eye level is 182cm tall observed the angle of elevation to the top of her house to be 32 º from her eye level at point A. she walks 20m towards the house on a straight line to a point B at which point she observes the angle of elevation to the top of the building to the 40 º. Calculate, correct to 2 decimal places the ; a)distance of A from the house b) The height of the house 9. Given that cos A = 5 / 13 and angle A is acute, find the value of:- 2 tan A + 3 sin A 10. Given that tan 5° = 3 + 5, without using tables or a calculator, determine tan 25°, leaving your answer in the form a + b c 11. A student whose eye level is 182cm from the ground observed the top of their house at an angle of elevation of 32 o at point A . She walked for 20m towards the house along a straight road to a point B , where she observed the top of the building again at an angle of elevation of 40 o . Calculate correct to 2 decimal places the:- (a) Distance of A from the house (b) The height of the house
Image of page 1
12. Given that tan x = 5, find the value of the following without using mathematical tables or calculator: 12 (a) Cos x (b) Sin 2 (90-x) 13. If tan θ = 8 / 15 , find the value of Sinθ - Cosθ without using a calculator or table Cosθ + Sinθ
Image of page 2

You've reached the end of your free preview.

Want to read both pages?

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture