Trigonometry grade 11 mathematics

2    If the hypotenuse of a right-angle isosceles triangle is 2, what is the length of each of the other side?

A. 1/√2 

•  √2 – 1

• 1

• √2

• √3

1.         In the diagram above, find the ratio |PQ|/|PR|

A. 2 : 5 

•  3 : 5

• 2 : 3

• 3 : 2 

• 5 : 3

The straight line y = mx - 4 passes through the point(-4,16). Calculate the gradient of the line.

• -5

• -3

• 3

• 5

In the diagram, line EC is a diameter of the circle ABCDE.

If angle ABC equals 158°, find ∠ADE

• 112

• 90

• 68

• 22

Given that sin (5x-28)° = cos (3x-50)", 0°≤ x ≤ 90°, find the value of x.

• 39

• 32

• 21

• 14

In the diagram, MNR is a tangent to the circle centre O at N and ∠NOS = 108°. Find ∠OSN

• 72

• 32

• 36

• 18

find the value of (x+y)

• 215°

• 70°

• 135°

• 145°