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anonymous
 5 years ago
simple trig problem help!
simplify the following..
cos(7π/126º)cos(36º/5)+sin(7π/126º)sin(36º/5)
anonymous
 5 years ago
simple trig problem help! simplify the following.. cos(7π/126º)cos(36º/5)+sin(7π/126º)sin(36º/5)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0cos(7pi/ 126  36pi/5) . cosine formula !!!!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i'm not exactly following...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0cosA cosB + sinA sinB = cos (AB)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0then shouldn't it be cos(7π/126º36º/5) ? you had put B=36π/5...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sry...typed wrongly...my bad

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the angle must be in DEGREES or RADIANS.,,,u can NOT use both

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so then my answer would be correct so long as i take away the degrees sign?
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