If `sin2theta = 1/2` then what is the value of `cos (75^@ – theta)`

If sin 2 theta = (1)/(2) then what is the value of cos (75^(@)-theta) ?

If sin 2 theta = (1)/(2) then the value of cos (75^@ - theta) is :

If 0^(@) lt theta lt 90^(@) and cos^(2) theta - sin^(2) theta = (1)/(2) , then what is the value of theta ?

If sec theta ( cos theta + sin theta) = sqrt""2 , then what is the value of (2 sin theta )// (cos theta - sin theta ) ?

If sec theta (cos theta + sin theta) = sqrt2 , then what is the value of (2 sin theta)//(cos theta- sin theta) ? यदि sec theta (cos theta + sin theta) = sqrt2 है,तो (2 sin theta)//(cos theta- sin theta) का मान क्या है?

If sin theta_1+sin theta_2+sin theta_3+sin theta_4=4 , then what is the value of cos theta_1+cos theta_2+cos theta_3+cos theta_4=?

If 3"sin"theta+5"cos"theta=4 , then what is the value of (3"cos"theta-5"sin"theta)^(2) ?

If sin theta + 2cos theta = 1, then what is 2sin theta - cos theta equal to?

If sin^(8)theta+cos^(8)theta-1=0 then what is the value of cos^(2)theta sin^(2)theta