A boat sails on a bearing of 75° for 128miles and then turns and sails 203miles on a bearing of 191°. Find the distance of the boat from its starting point. I am unsure how to solve...

A boat sails on a bearing of 75° for 128miles and then turns and sails 203miles on a bearing of 191°. Find the distance of the boat from its starting point. I am unsure how to solve...

establish the identity

establish an identity

i think the question said find exact solution?

A question from trigonometry and functions... If "k tanx + tan(kx) = 0", prove: ((sin kx)^2)/(sinx)^2 = (k^2)÷((1+(k^2-1)(sinx)^2))

Please prove using trigonometric identities!

prove that (1-tan26)(1-tan266)= -4

prove that (1-tan26)(1-tan266)= -4

prove that tan6.tan42.tan66.tan78=1

Rewrite cos(x+π/4) in terms of sin(x) and cos(x)

Rewrite sin(x+(7pi)/4) in terms of sin(x) and cos(x)

sin(165°)=√A((√B)-1)/4 A= B=

tan(71°)-tan(11°)/1+tan(71°)tan(11°)=tan(A°)=√B A= B=

Solve: 2sin2x=cotx , -π ≤ x ≤ 2π

The restaurant in the Space Needle in Seattle rotates at a rate of one revolution per hour.

Find a positive angle less than 2piπ that is coterminal with the given angle. -pi/-150

if cot theta is equal to 1/5. What is sec theta equal to?

http://www.ezimba.com/work/171119C/ezimba17728288483300.jpg Please help!

A Student moves a box of books with a rope by pulling the rope with a force of 90 N at an angle of 30°. The books have a mass of 20 kg and a coefficient of friction between the box...

IF sinA-cosA=1 and sinA.cosA=0 then proe that sinA + cosA = +/- 1

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