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5sin2x+4cos2x

# If tan(45+x)+tan(45-x)=3 then show tan²(45+x)+tan²(45-x)=7

Here x is theta,and please any one help me I am not getting it

# How to Prove

Sin2 (6x) - Sin2 (4x) = sin(2x)Sin(10x)

Rewrite the rational exponent as a radical by extending the properties of integers exponents. 2^3/4 / 2^1/2     The choices are   8 radical2^3   Radical...

# T^3-t/t^3-t^2 simplify

Simplify rational expression steps please I know the answer is t+1/t but how do u get thete

# Determine the number of diagonals in a regular 52-gon.

I need help with math final. It's due tonight

# what is a general term for the set: {15,30,45,60,75,...}

what is a general term for the set {15,30,45,60,75,...}

# let u={a,b,c,d,e,f,g,h,i,j,k} A= {a,b,c,d,e,f} B= {a,g,i,j,k} C={e,h,j}

What is    BUC   A-B   (A-B)-C

# how many subsets and proper set does the set {a,b,c,d,e} have

how many subsets and proper sets does the set {a,b,c,d,e} have

# {x l x element of set N and x is a multiple of 6}

{ x l x element of set N and X is a multiple of 6}

# the set w is the set of letters in the word washington

the set w is the set of letters in the word washington

# How many different towers can she build that are three blocks high?

Ann is building towers using just blue and yellow blocks. She can build only four different towers that are two blocks high.   blue+blue, blue+yellow, yellow+blue, yellow+yellow   How...

|x-2|-|3x-10|>-6

|x-1|+|x|+|x+1|=2

# how to solve rational expressions

how to solve rational expressions and equation

# Tax on a \$25 item is \$2.06. What should be the tax on a \$45 item?

ratios and proportions

# The measures of the angles of a triangle are in the ratio of 1 : 2 : 3. Find the measure of each angle.

ratios and proportions

# 1. The Shirley Temple drink is made with a ratio of eight parts of ginger ale to one part grenadine syrup

its math and its dealing with ratios and proportions

# Distribution Function F(x)

Let X be given by its distribution function F(x), such that   F(x) = 0 if x ≤ 0   F(x) = x^2/4 if 0<x≤2     F(x) =1 if x>2   Graph...

# Random Variable

Find E(X),Var(X) ,Ó(X) if a random variable X is given by its density function F(X) , such that    f(x)=0, if x≤0   f(x)=3/8 x^2, if 0<x≤2   f(x)=0,...