Prove that:sin(x+2y)+sin(y+2z)+sin(z+2x)=4sin(x-y)/2sin(y-z)/2sin(z-x)2

Prove that:sin(x+2y)+sin(y+2z)+sin(z+2x)=4sin(x-y)/2sin(y-z)/2sin(z-x)2
1. 1 answer
2. asked by Rabin
3. 462 views
1. 3cot^2 (x) - 1 = 0My answer: pi/3, 2pi/3, 4pi/3, 5pi/3 2. 4cos^2 (x) - 1 = 0 My answer: pi/3, 2pi/3, 5pi/3, 4pi/3 3. 2sin (x)
1. 2 answers
2. asked by Wanda
3. 1,243 views
what is the range of each of these equations?1. 4sin(3x-1)+4 2. -4sin(-3x+1)-4 3. 2sin(1.5x+.5)+2 4. -2sin(-1.5x-.5)-2
1. 0 answers
2. asked by Bethany
3. 526 views
2sin(x)cos(x)+cos(x)=0I'm looking for exact value solutions in [0, 3π] So I need to find general solutions to solve the
1. 6 answers
2. asked by Alex
3. 917 views
Prove:sin2x / 1 - cos2x = cotx My Attempt: LS: = 2sinxcosx / - 1 - (1 - 2sin^2x) = 2sinxcosx / - 1 + 2sin^2x = cosx / sinx - 1 =
1. 5 answers
2. asked by Anonymous
3. 1,459 views
Verify the identities.Cos^2x - sin^2x = 2cos^2x - 1 When verifying identities, can I work on both side? Ex. 1 - sin^2x - sin^2x
1. 1 answer
2. asked by Shadow
3. 658 views
I need to find all solutions of the given equations for the indicated interval. Round solutions to three decimal places if
1. 1 answer
2. asked by Emily
3. 1,133 views
Prove the following trigonometric identities by showing that the left-hand side is equivalent to the right-hand side.a)
1. 1 answer
2. asked by Paula
3. 325 views
Use your knowledge of the half-angle and double-angle identities to simplify the following(4sin(2a))-(2sin(2a))(4sin^2(a))
1. 1 answer
2. asked by Addi
3. 519 views
y= 2sin^2 xy=1- sinx find values of x inthe interval 0<x<360 if 2sin^x = 1-sinx this can be arranged into the quadratic. 2sin^2
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2. asked by Candy
3. 662 views