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# 4 sin x =-1+2 sin x

solve the equation for  0≤ x < 2 pie

# -2cos x+square root of 3 = 0

solve the equation for 0 less than or equal to x less than 2 pie

# tan(pie/2-x) cot x / csc^2(-x)-1

use the fundamental identities to simplify the expression

# cot^2x-cos^2x=cot^2x cos^2x

Verify the identity

# 2sec^2x(1-sin^2x)

Use the fundamental identities to simplify the expression

# truiangles

A straight road leads from an ocean beach into the nearby hills. The road has a constant upward grade of 7°. After taking this road from the beach for a mile and a quarter, how high above sea level...

# Trigonometry Word Problem

a 7.5M Ladder is leaned up against a wall, what angle does the ladder make with the wall if the top of the ladder is 6.6m above the ground?

# Trigonometry Word Problem

The distance from a pebble to the base of a vertical cliff is 43m. The angle between the pebble and the top of the cliff is about 57 degrees. What is the height of the Cliff?

# Would someone help me answer this trigonometry math word problem and show my work for it? Thanks!

The value of a machine depreciates according to the function f(x) = 20000(1/2)x ,where x is the time in years from the purchase of the machine. What is it's value after 3 years?

# Can anyone help me answer these two trigonometry math word problems and show all my work for both?

1. The profit of an organization is calculated by the function P(x) = x2 - 4000x + 7800000, where x is the number of units sold. If the net profit is 3800000, find the number of items sold...

# Find all solutions in the interval [0,2pi): sin (cos x) = 0

Find all solutions in the interval [0,2pi): sin (cos x) = 0

# Definition of tangent

I need definitions

# given cos x=-3/4, with x in quadrant 2. find the remaining five trigonometric functions of x.

I have No idea on what to do.