Use a power reducing identity to rewrite the following expression below in terms containing only first powers of cosine Ive been working on this one for a minute and i keep getting...
Use a power reducing identity to rewrite the following expression below in terms containing only first powers of cosine Ive been working on this one for a minute and i keep getting...
I know you are supposed to us the trig identities, but I have know idea where to even begin.
Prove that tan(45+x) is identical to 2tan(45-x) Please show all your working Thanks in advance for your help!
not seeming to get this problem
1Alltrigonometric equations are identities. true or false? My answer: false 2 cos a/2= +/- √(1-cosa)/2 True or false? False...
If 270º <x< 360º , show that √(2+√(2+2cosx)) = 2 sin x/4. Thank You! :)
( cos x + sinx )2 1 + 2 sinx cos x = cos x tan x csc x
I don't understand how to do maths mostly because I don't understand why formulae works they way they do or the reasoning behind equations and etc. I tried explain the (sin 2 theta) double-side...
tan^2x+sec^2x=1 true or false? for all values of x Uhm I think false? tan^2 x+1=sec^2x. So to get 1 on the other side of the...
sin theta + sin 3 theta = tan theta sec theta Show that the right side equals the left side
The question asks to the nearest minute, it also asks express 172.45 as an angle.
Use trigonometric identities to find the exact value of tan(5π/8).
Use trigonometric identities to find the exact value of cos(5π/8).
I'd like to know how to solve this problem We are learning trigonometric identities
The vertical displacement of the end of a robot arm (in cm) at time t (in [16 marks] seconds) is given by y = 8 + 7 cos 3t + 7 cos 6t: (a) Find all times, t > 0, (in...
a) -1/3 b) 1/3 c) - sqrt1/6 d) sqrt1/6 I think it is either c or d. I'm confused on whether it is negative or positive. If it is in quadrant 4, wouldn't y be...
Find the exact value of cos(11p/8) A) √(2+√2)/4 B) √(2-√2)/4 C) - √(2-√2)/4 D) -√(2+√2)/4 I think it is either c or b To...
A) √(2+√2)/4 B) √(2-√2)/4 C) - √(2-√2)/4 D) -√(2+√2)/4 2) 1 + cos (12x)= a)2cos^2(12x) b)...
tan^2x+sec^2x=1 true or false? for all values of x 2) cos2a=2cos^2a-1 for ALL values of a true or false? 3) sin(-x)=-sinx for all values...
Solve sin(x)(sinx+1)=0 a)+/- πn, x=π/2 +/-2πn b) π/n+/- 2πn, x=3π/2+2πn c) x=+/- πn d) +/-πn, x=3π/2 +/- 2πn I...