Trigonometry Answers

Verify: cos3x=cos³x-3sin²xcosx

Verify: csc⁴x-2csc²x+1=cot⁴x

A ladder leaning against a wall makes a 35° angle with the ground. The foot of the ladder is 5 meters from the wall. What is the length of ladder? (to the nearest tenth)

A rope fancer was walking on a loose rope tied to the tops of two posts each 9m high.when the dancer was 2.7manive the ground it was found that the stretched pieces ig rope made angles of 30 and 60 with horizontal line parallel to ground find the length of rope in stretched condition

Show that;sin(90°-theta)/Cosec(90°-theta)+cos(90°-theta)/sec(90°-theta)=1

State whether the given measurements determine zero, one, or two triangles.
C = 37°, a = 16, c = 14

what is the coordinates of the center of the ellipse (x+2)^2/9+(y-4)^2/36=1

(-tan)^2/(1-cot)^2 = tan^2

It says find x to the nearest tenth of a centimeter
It’s a triangle and it’s 4m on the side and 70 degrees inside

Prove that
(1-tan^2(theta÷2))(1-tan^2(theta÷2square))(1-tan^2(theta÷2cube)).... Infinity= theta dot cot(theta)