SOLUTION: Solve the following trigonometric equation analytically (using identities if necessary for exact values if possible)for values of x for 0<x<2pi.
sin 8x cos 7x - cos 8x sin 7x =
Algebra.Com
Question 641343: Solve the following trigonometric equation analytically (using identities if necessary for exact values if possible)for values of x for 0
sin 8x cos 7x - cos 8x sin 7x = 0
Simplify and use pi as needed.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
sin 8x cos 7x - cos 8x sin 7x = 0
======
Formula: sin(x-y) = sinx*cosy - cosx*siny
----
Your problem:
sin 8x cos 7x - cos 8x sin 7x = 0
---
sin(8x-7x) = 0
sin(x) = 0
x = 0 or pi or 2pi etc.
===================
Cheers,
Stan H.
RELATED QUESTIONS
Calculate (if possible) the values for the six trigonometric functions when tata= -450... (answered by jsmallt9)
use common trigonometric identities for the functions given to find the indicated... (answered by nabla)
Use the trigonometric identities to expand and simplify if possible.
For... (answered by MathLover1)
The book says:
In each exercise, use identities to find the exact values at α for... (answered by Alan3354)
Calculate (if possible) the values for the six trigonometric functions of the angle... (answered by jsmallt9)
Solve the following inequalities. If there are any identities, say so. If there are any... (answered by bucky)
Use identities to find the exact values at α for the five remaining trig. Functions... (answered by lwsshak3)
Use sum or difference identities to find the exact value of each trigonometric function.
(answered by stanbon)
By using trigonometric identities, find the value of sin A if tan A =... (answered by stanbon)