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anonymous
 one year ago
Simplify sin(45x)cos(45x)
anonymous
 one year ago
Simplify sin(45x)cos(45x)

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Hero
 one year ago
Best ResponseYou've already chosen the best response.1Used Sum and difference Angle formulas for sine and cosine to simplify

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So 2sinAcosB=sin(A+B)+sin(AB)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But how the question sin and cos become sin and sin in the forumla?

Hero
 one year ago
Best ResponseYou've already chosen the best response.1where'd you get that formula.

Hero
 one year ago
Best ResponseYou've already chosen the best response.1It doesn't look correct as written

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What's the correct formula?

Hero
 one year ago
Best ResponseYou've already chosen the best response.1http://regentsprep.org/Regents/math/algtrig/ATT14/formulalesson.htm

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So what formula do I use?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do I work with sin (45x) separately and then cos (45x) separately?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yep, I understood that part

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I subbed in the values and got this:

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(sin45cosxcos45sinx) (cos45cosx+sin45sinx)

Hero
 one year ago
Best ResponseYou've already chosen the best response.1You should know what Sin 45 and cos ( 45)

Hero
 one year ago
Best ResponseYou've already chosen the best response.1You don't need to Know What x ls. You're simplifying an expression not solving an equation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Am I doing this wrong?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How do I further simplify this?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(rt2/2)^2 x (cosxsinx)(cosx+sinx)

Hero
 one year ago
Best ResponseYou've already chosen the best response.1Just try to work on it and post your simplification

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0= 1/2 x (cosxsinx)(cosx+sinx)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't know how to further simplify

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh that's a multiplication sign

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0= 1/2(cosxsinx)(cosx+sinx)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That's a difference of two squares

Hero
 one year ago
Best ResponseYou've already chosen the best response.1Do you want to try to correct your own Mistake?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is it 1/2 cosx^2sin^2 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok, how do I further simplify?

Hero
 one year ago
Best ResponseYou've already chosen the best response.1sin(×) is the primitive trig expression So express the simplification in terms Of sine.

Hero
 one year ago
Best ResponseYou've already chosen the best response.1Do you know the Pythagorean identity?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Could you please give me the completed working out, I'm a bit short on time

Hero
 one year ago
Best ResponseYou've already chosen the best response.1substitute cos ^2x with its equivalent expression then finish simplifying

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok thank you so much
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