78 473
Assignments Done
Successfully Done
In September 2019

Answer to Question #2670 in Trigonometry for aidan

Question #2670
Prove that:& cos (θ-φ ) - sin (θ+φ/2) =-2 cos θ
Expert's answer
This formula is not correct:
If θ=φ=0, then
The left-hand side is equal to
& cos 0 – sin 0 = 1,
while the right-hand side is
-2cos0 = -2

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!


No comments. Be first!

Leave a comment

Ask Your question

Privacy policy Terms and Conditions