fernandezale99
fernandezale99 fernandezale99
  • 12-06-2017
  • Mathematics
contestada

(cos θ + cos θ)2 + (cos θ + cos θ)2

Please help!
These are the options
A.sin^θ
B.4
C.8cos ^2 θ
D.cos ^θ

Respuesta :

jdoe0001 jdoe0001
  • 12-06-2017
[tex]\bf [cos(\theta)+cos(\theta)]^2+[cos(\theta)+cos(\theta)]^2\implies [2cos(\theta)]^2+[2cos(\theta)]^2 \\\\\\ 2^2[cos(\theta)]^2+2^2[cos(\theta)]^2\implies 4[cos(\theta)]^2+4[cos(\theta)]^2 \\\\\\ 8[cos(\theta)]^2\iff 8cos^2(\theta)[/tex]
Answer Link

Otras preguntas

You paint 1/3 of a wall in 1/4 of an hour at this rate how long will it take for you to paint one whole wall
Which is personal platform for users to introduce themselves? a. wall b. profile page c. status d. friendlist The correct answer is "B"
Draw one of the isomeric c5h12o alcohols that can be prepared by lithium aluminum hydride reduction of a ketone.
what is 7x6 like 7 rows of 6 collums
Divide. 3.2 ÷ 0.8 help me e pleaseeeeeeeeeeee !!!!!!
Why didn't the united states ratify the treaty of versailles?
The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant. What is the value of a? A) -16 B) -3 C) 3 D) 16
After WWll, which synthetic fabric began appearing in casual clothing?
Can u help me with 8 and 10
here is a sketch of y=x^2 + bx + c. the curve intersects the x-axis at (2,0) and point P. the y-axis at (0,14) work out the x-coordinate of the turning point of