Solve: `(costheta+sintheta)(2costheta-1)=0`

If costheta-sintheta=sqrt(2)sintheta , then prove that: costheta+sintheta=sqrt(2)costheta

If the angle theta is acute, then the angle between the pair of lines given by (costheta-sintheta)x^(2)+2(costheta)xy+(costheta+sintheta)y^(2)=0 is

Evaluate : 1/costheta + sintheta/costheta = ?

If 0^(@)lethetale90^(@) , then solve the following equations : (i) (costheta)/(1-sintheta)+(costheta)/(1+sintheta)=4 (ii) (cos^(2)theta-3costheta+2)/(sin^(2)theta)=1 (iii) (costheta)/("cosec"theta+1)+(costheta)/("cosec"theta-1)=2

Solve for x : x^2 - ( sintheta + costheta ) x + sintheta costheta = 0

If costheta+sintheta=sqrt(2)costheta ,then find the value of (costheta-sintheta)/(sintheta) .

The value of (sintheta)/(1+costheta)+(sintheta)/(1-costheta) is :

(sintheta)/(1+costheta) + (1+costheta)/(sintheta) = 2 cosec theta

If : (1+sintheta)/(1+costheta)+(1-sintheta)/(1-costheta)=2u.(csctheta-costheta),"then" : u =