[" 11.हल कीजिए : "6cos theta+8sin theta=9],[" यदि "tan53^(@)8'=1(1)/(3)" और "cos25^(@)50'=(9)/(10)]

6costheta+8sintheta=9 , when tan53^(@)8^(')=4/3 and cos25^(@)50^(')=9/10

6costheta+8sintheta=9 , when tan53^(@)8^(')=4/3 and cos25^(@)50^(')=9/10

6sin theta+7cos theta=9 if tan theta=

Show that cos^6theta+sin^6theta=1/8(5+3cos4theta)

If (cos theta )/(1-sin theta )+(cos theta )/(1+sin theta )=4, 0^@ यदि (cos theta )/(1-sin theta )+(cos theta )/(1+sin theta )=4, 0^@< theta<90^@ , है, तो (tan theta+ cosec theta) का मान क्या होगा ?

Prove that : (sin theta)/(cos[3 theta])+(sin[3 theta])/(cos[9 theta])+(sin[9 theta])/(cos[27 theta])=(1)/(2)[tan[27 theta]-tan[theta]]

Prove that :(sin theta)/(cos(3 theta))+(sin3 theta)/(cos9 theta)+(sin9 theta)/(cos27 theta)=(1)/(2)(tan27 theta-tan theta)

If sin theta + sin^(2) theta =1 then cos^(4) theta + cos^(8) theta + 2 cos^(6) theta =

If alpha, beta are solutin of 6 cos theta + 8 sin theta=9, then sin (alpha + beta)=