Home
Class 11
MATHS
cos(x-(pi)/(8))'...

cos(x-(pi)/(8))'

Promotional Banner

Similar Questions

Explore conceptually related problems

The minimum value of 5cos x+3cos(x+(pi)/(3))+8

The value of lim_(x rarr pi/4)(tan^(3)x-tan x)/(cos(x+(pi)/(4))) is 8 b.4 c.-8d .-2

cos ((pi) / (8)) cos ((3 pi) / (8)) cos ((5 pi) / (8)) cos ((7 pi) / (8)) =

((sin((pi)/(8))+i cos((pi)/(8)))^(8))/((sin((pi)/(8))-i cos((pi)/(8)))^(8)) =

[(1 + cos ((pi) / (8)) + i sin ((pi) / (8))) / (1 + cos ((pi) / (8)) - sin ((pi) / (8 )))] ^ (8) =?

(1 + cos ((pi) / (8))) (1 + cos (3 (pi) / (8))) (1 + cos (5 (pi) / (8))) (1 + cos (7 (pi) / (8))) =

Prove that cos((pi)/(8))+cos((3 pi)/(8))+cos((5 pi)/(8))+cos((7 pi)/(8))=0

Show that f(x)=cos(2x+(pi)/(4)) is an increasing function on (3 pi/8,7 pi/8)