If cose a tancot9 b cse tan 8 c sin29 cos29 and is in quad
If cos(e) (a) tan()cot(9) (b) cse@) tan (8) (c) sin2(9) + cos2(9) = and is in quadrant II , then find Preview Preview | Preview cOS
Solution
1) cos = -7/11
a) tan*cot = tan*(1/ tan) = 1
b) csc*tan = (1/sin)*(sin/cos) = 1/cos = -11/7
c) sin2 + cos2 = 1
2) cos = 10/26
sin = sqrt[1 – cos2] = sqrt[1 – (10/26)^2] = 24/26
tan = sin/cos = (24/26)/(10/26) = 24/10
sec = 1/cos = 26/10
