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# which fact is not sufficient to show that planes R and S are perpendicular?

FJ is contained in plane R, BC and DE are contained in plane S, and FJ, BC, and DE intersect at A. its hard for me

# What are the answers to -4+sin(x)=-8+sqrt2/2

I need to know how to find the two answers between 0 and 2 pi. I need the answers in degrees, not radians. there should be two answers

# function of Sin

What is the function of Sin

# Trig Tan Math problem

Ive tried to work these problems but am unsure of how exactly to get the correct answer.  a man jumps out of a plane at 4250 feet directly over his target and falls 82 degress to the ground. How...

# A person in a 60ft tall tower is looking down 18 degrees at a fire how far away is the fire from the person

absolutely urgent ghavdieveudbekeuehenevv

# Find equations of the normal line?

Find equations of the normal line to z=sinx cosy at (0, pi, 0). Answer: x=-t, y=pi, z=-t. Fx=cosx cosy Fy=-sinx siny

# (csc^2theta)/2=2/(1-costheta)

Establishing an Identity, Double-angles and Half-angle Fourmula

# (Cos^2x-sin^2x)/ (sin x cos x)

Terms of sin an cos simplify

# Cos (7 pi/ 12)

Find the exact value of each expression

# (Sec theata+ Csc theata)(cos theata+ sin theata)

you have to use the identities an. It's trig

# find the values of theta..... hardest trig Q..

please.. not too sure how to solve this question.. any idea....? T=theta

# Anti derivative for : cos^2xsin^3x

Find the antiderivative for cosine sqaured x multiplied by sin to the cubed x (cosx)^2 times (sinx)^3

# Trigonometry hardest questions

x^2/a^2 + y^2/b^2 = 2 know have to squar them... but really confused.... pleasee help mee...????

# .........................................................

Any idea how to sort this question out? Thanks..

# What is trigonometry?

What Is Trigonometry?

4x-1/3x2-11x-26

# Trigonometry

Let S be the sum of all the possible values of sinx that satisfy the following equation: 5−2cos2x−7sinx=0 S can be written as ab, where a and b are coprime positive integers. What is the value...

# cos/sec x sin = csc - sin

trigonometry identity question

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