`(cos^(2)56^(@)+cos^(2)34^(@))/(sin^(@)56^(@)+sin^(2)34^(@))+3tan^(2)56^(@)tan^(2)34^(@)=?`

If 6(sec^(2) 59^(@)-cot^(2)31^(@))-(2)/(3) sin90^(@)-3 tan^(2)56^(@)y tan^(2)34^(@)=(y)/(3) then the value of y is :

Evaluate : ((sec^(2)27^@-cot^(2) 63^@) +(sin^(2) 52^(@)+sin^(2) 38^@))/((cosec^(2) 34^(@)-tan^(2) 56^(@)) +tan 10^@.tan 20^@ .tan 30^@.tan 70^@. Tan 80^@)

(cos10^(@)+sin11^(@))/(cos10^(10)-sin11^(@))=tan56^(@)

The value of (cos68^(@))/(sin56^(@)*sin34^(@)*tan22^(@)) is equal to

Evalute (e ) cot34^(@)-tan56^(@)

sin160^(@)cos110^(0)+sin250^(@)cos340^(@)+tan110^(@)tan340^(@)=1)-12)13)34c

Without using trigonometric tables, evaluate. "sin"^(2)34^(@)+"sin"^(2)56^(@)+2" tan"18^(@)"tan"72^(@)-"cot"^(2)30^(@)

What is the value of "cosec"^(2) 68^(@) + sec^(2)56^(@) - cot^(2)34^(@) - tan^(2)22^(@) ?

Which of the following numbers is/are twin prime with 5(C)4((cos^(3)10^(0)+sin^(3)20^(@))/(cos10^(0)+sin20^(@)))(D)(cos68^(@))/(sin56^(@)sin34^(0)tan22^(@))

(1+cos 56^(@)+cos58^(@)-cos66^(@))/(cos28^(@)cos29^(@)sin33^(@))=kcos(A/2)cos(B/2)sin(c/2) then k=?