Half-Angle Identities - Page 6
Questions
- How do you find the exact value of #tan 0# using the half angle identity?
- How do you express #f(theta)=-sin(theta/4)-cos(theta/2)+6cos(theta/2)# in terms of trigonometric functions of a whole theta?
- How do you use # sin(pi/6)=1/2# to find cos(-pi/12)?
- How do you use half angle formula to find #tan (5pi)/12#?
- How do you find the value of #cos (theta/2)# given #sintheta=-7/25# and #270<theta<360#?
- How do you find the value of #cot(theta/2)# given #tantheta=-7/24# and #(3pi)/2<theta<2pi#?
- How do you find the value of #sin(theta/2)# given #costheta=(2sqrt5)/5# and #0<theta<90#?
- How do you find the value of #tan(theta/2)# given #costheta=-15/17# and #180<theta<270#?
- How do you find the value of #sin(theta/2)# given #tantheta=2# and #0<theta<pi/2#?
- How do you find the value of #tan15# using the half angle?
- How do you find the value of #sin (157 1/2)#?
- Given #sin theta =-3/5# and #270<theta<360#, how do you find #sin (theta/2)#?
- Given #costheta=24/25# and #270<theta<360#, how do you find #cos(theta/2)#?
- How do you find the exact value of #cos(pi/6)#?
- How do you find the exact value of #sec(pi/4)# using the half angle formula?
- If #costheta=-4/5# and #pi<theta<(3pi)/2#, how do you find #sin (theta/2)#?
- How do you find the value of #sin15# using the double or half angle formula?
- How do you find the value of #cos ((23pi)/12)# using the double or half angle formula?
- How do you find the value of #sin (22 1/2)# using the double or half angle formula?
- How do you solve: cos(π/2-x)secx) ?