SOLUTION: choose the expression with exactly the same value as the given expression sin(-5) A) sin(5) B) -cos(85) C) cos(85) D) cos(-85)

Algebra.Com
Question 766936: choose the expression with exactly the same value as the given expression
sin(-5)
A) sin(5) B) -cos(85) C) cos(85) D) cos(-85)

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
choose the expression with exactly the same value as the given expression
sin(-5)
A) sin(5)
B) -cos(85)
C) cos(85)
D) cos(-85)
----
sin(-5) = -cos(90-5) = -cos(85)
============
Cheers,
Stan H.
==========

RELATED QUESTIONS

choose the expression with exactly the same value as the given expression... (answered by tommyt3rd)
Evauluate: (sin 42 / cos 48) * (cos 45 / sin 90) *cot 5 *tan 85 I worked out this sum (answered by Alan3354)
Given sin (A) = 3/5 with 0 < A < 90 and cos (B) = 4/5 with 270 < B < 360, which... (answered by jim_thompson5910)
I need help simplifying the given expression cos(5)cos(4) +... (answered by jsmallt9)
Evaluate the expression. {{{ cos(-x) }}}{{{ cot(x) }}}{{{ sin(-x) }}} A.) {{{ cos(x)... (answered by Edwin McCravy)
The expression sin θ (cot θ - csc θ) is equivalent to? A) 2 Cos θ (answered by stanbon,lynnlo)
Determine the exact value of: cos(x)(sin(x)sec(x)+tan(x)/sec(x)tan(x)) , if... (answered by Boreal)
Hi, Thanks to whoever can solve this Evaluate the given expression show all work... (answered by anand429)
Rewrite as a single expression. cos(9theta)cos(6theta)-sin(9theta)sin(6theta) Select... (answered by Alan3354,ikleyn)