Show that:`|(sintheta,costheta),(-costheta,sintheta)|`=1

sintheta/(1-cottheta)+costheta/(1-tantheta)=

(sintheta+sin 2theta)/(1+costheta+cos2theta)=

Prove that: |(x.sintheta,costheta),(-sintheta,-x,1),(costheta,1,x)|=-x^3

Simplify costheta[[costheta,sintheta],[-sintheta,costheta]+sintheta[[sintheta,-costheta],[costheta,sintheta]]

Show that AB=BA if A=[[costheta,sintheta],[-sintheta,costheta]],B=[[costheta,-sintheta],[sintheta,costheta]]

Show that AB=BA where, A=[[costheta,sintheta],[-sintheta,costheta]],B=[[costheta,-sintheta],[sintheta,costheta]]

Prove that (frac(1+sintheta-costheta)(1+sintheta+costheta))=sqrt(1-costheta)/sqrt(1+costheta)

Prove the following identities: (frac(sintheta)(1+costheta))+(frac(1+costheta)(sintheta))=2cosectheta

Prove the following: (sintheta+cosectheta)^2+(costheta+sectheta)^2=Tan^2theta+cot^2theta+7

Select and write the correct answer from the given alternatives in each of the following:If [theta,sintheta,costheta][[theta],[sintheta],[costheta]]=[26] then theta is