please help!

[jovial leaf]

because we know that the two angles add up to pi/2
then we can use that fact to solve the trig functions

[grave talon]

so sin is 1 cos is 0 and tan is 0?

[jovial leaf]

hope it helps, think what is the question asking and how we can approach the question
for example, how we can divide the angles in three parts

[grave talon]

it says that answer is wrong ?

[jovial leaf]

may i know why did you think the angle is 0?

[grave talon]

because theta is pi?

2pi?

[jovial leaf]

remember the two angles add up to pi/2 in that ratio mentioned

[grave talon]

sin 1 cos 0 and tan 0 and it showed it was wrong

[jovial leaf]

try to calculate the angle first?

[grave talon]

pi/3?

[jovial leaf]

close, the three angles add to pi/2 which is a quarter of the circle

try pi/6

hope it helps

[grave talon]

ok so sin 1/2 cos - sqrt(3)/2 and tan 1/sqrt(3)

[jovial leaf]

360 = 2pi