if A+B+C=180 prove that sin2A+cosA sinB SinC =1+cosA cosB cosC
what is cos2xcos7x+sin7xsin2x equvivalent to?
cos 9x
sin9x
cos^2(9x)-sin^2(9x)
cos5x
show the work as well
might nwed these formulas
2 sum & Difference Identities sin latb) sina cosb + cos a sinb. Sinca sina cos b-Cosa sinb cos lab) = cos a Casb- sing sinb COSLO-b = cosa cos b+ sino sinb tanla+batang tan b Power reducing Formulas 1 tang tanb sindo - 1-Cosao tanla-b) = tana - tank 1+ tangtanbo cos6= 1+ cosa e Double Angle Identites sin axo...
NOTE: Very useful trigonometric identities are these: sin(A B)-sin A cos B sin B cosA, cos(A +B)-COSA cos B-sin A sin B 32. (Bonus problem) A periodic function g(x)is defined on one period like this: g(x).0' on 1<x<0, and it equals x on 0<<1 (a) Give a labeled sketch of the graph of g(x), let's say from-1.5 to 3.5 (b) Give labeled sketches of, the graphs of g (x) and g(x) (i.e, the even and odd parts ofg).
Use Integration by Parts to show that [(cosa)" da = (cas 2)»-' sin + "* |(cosa)n-2 der and use this to evaluate S(cos r) dr.
Please show all step and formulas. Label triangle.
3. CosA-__. 2. Sin 1. Sin A- 13 12 4. 4.
3. CosA-__. 2. Sin 1. Sin A- 13 12 4. 4.
need help wirh part a and b
1. Find all different solutions to the triangle problems, if a) a=10, b= 12, 0216 they exist (b) soo-b, e=720 ( = 460 2 sum & Difference Identities sin latb) sina cosb + cos a sinb. Sinca sina cos b-Cosa sinb cos lab) = cos a Casb- sing sinb COSLO-b = cosa cos b+ sino sinb tanla+batang tan b Power reducing Formulas 1 tang tanb sindo - 1-Cosao tanla-b) = tana - tank...
What is the eigenvalue corresponding to A=[cosB -sinB; sinB cosB]? O-1 (multiplicity of 2) if B=pi O-1 and 1 if B=pi 0-2 (multiplicity of 2) if B=pi/2 o 1 and 2 if B=pi
Question 5 of cosa = (0<a<) and tanB = { (0<B<į), find tan(a+B) 5 If cosa = and 2 12 and simplify your answer completely. Show all of your work. Failure to show appropriate work will result in a mandatory s Use the editor to format your answer Question 6 Question 9 If sino = 2 3 find cos2e. Simplify you Show all of your work. Failure to show ap Use the editor to format your answer Question 14 Express...
1. Let S = span{sinạ x, cosa x}. Determine whether (a) 1, (6) sin 22, (c) cos 2x, lie in S.
9. Compute seca, cosa, and sin 6pts) tan a = 12 and cos a > 0 sec a= cos a= sin a=