if `tantheta=1/(2+(1/(2+1/(2+...oo))))` then find possible values of `theta`

if tan theta=(1)/(2+((1)/(2+(1)/(2+-oo)))) then find possible values of theta

If costheta=(5)/(13) , then find the value of tan^(2)theta+sec^(2)theta . 0^(@)ltthetalt90^(@)&tantheta=sqrt(6+sqrt(6+sqrt(6+....oo))) , then find the value of sec^(2)theta .

If costheta=(1)/(sqrt(2)) ,then find the value of (tan^(2)theta+1) .

If 2 cos theta = 1 , find the value of 2 theta

If tantheta_(1)=1,sintheta_(2)=(1)/(sqrt(2)) then the value of sin(theta_(1)+theta_(2)) equal to

If tantheta=sqrt(2)-1 ,then find the value of cottheta .

If 1/(sin^(2)theta)-1/(cos^(2) theta)-1/(tan^(2)theta)-1/(cot^(2)theta)-1/(sec^(2)theta)-1/(cosec^(2)theta)=-3 then find the value of theta .

If x= (1)/(sqrt2) + (1)/(2) + (1)/(2sqrt2) +… + oo , then find the value of x + (1)/(x) .

If tantheta=(1)/(2) and tanphi=(1)/(3) , then the value of theta+phi is

Find the value of 2+(1)/(2+(1)/(2+(1)/(2+...oo)))