Question

cos(pie)/7cos(pie)/5-sin(pie)/7Sin(pie)/5 write the expression as sin, cos or tan of an angle

Answer 1

wooow! so many PIES
that's a really delicious expression

Answer 2

\[\cos x \cos y-\sin x \sin y=\cos (x+y)\]

Answer 3

Perhaps you could match your problem up with that identity.

Answer 4

hey is the answer cos(2pie)/35

Answer 5

What is x?

Answer 6

x is \[\pi / 7\]

Answer 7

What is y?

Answer 8

y is \[\pi/5\]

Answer 9

What is
\[\frac{\pi}{7}+\frac{\pi}{5}\]

Answer 10

\[2\pi/35 \] \[\pi/12\]

Answer 11

don't know if you have times it or add it

Answer 12

\[\frac{\pi}{7}\times \frac{5}{5} +\frac{\pi}{5}\times \frac{7}{7}=\]
\[\frac{5\pi}{35}+\frac{7\pi}{35}=\frac{12\pi}{35}\]

Answer 13

oh ok thanks