i need help with some trigonometric problems. i really dont understand. please help me!!
+476 I wish I could help, but I haven't learned about cosecants and cotangents.
Sorry!
:)
+129852 [ sin x * tan x ] + cos x = sec x
[sin x * sin x / cos x ] + cos x = sec x
[ sin^2 x / cos x] + cos x = sec x ... get a common denominator on the left
[sin^2 x / cos x] + [cos^2 x / cos x ] = sec x .... sin^2 x + cos^2 x = 1
[ sin^2 x + cos^2 x] / cos x = sec x
1 / cos x = sec x
