[E=(1-(cos61^(@))/(cos1^(@)))(1-(cos62^(@))/(cos2^(@)))*(1-(cos119^(@))/(cos59^(@)))],[" then "E" is equal to "]

(1-(cos61^(@))/(cos1^(@)))(1-(cos62^(@))/(cos2^(@)))(1-(cos63^(@))/(cos3^(@)))...(1-(cos119^(@))/(cos59^(@)))

Value of (1-(cos61^(0))/(cos1^(0)))*(1-(cos62^(0))/(cos2^(0)))*(1-(cos63^(0))/(cos3^(0)))*(1-(cos119^(@))/(cos59^(@)))(1-1(b)1(c)2(d)-2

Let x=sin1^(@) , then the value of the expression (1)/(cos 0^(@).cos 1^(@))+(1)/(cos 1^(@).cos 2^(@))+(1)/(cos 2^(@),cos3^(@))+……..+(1)/(cos 44^(@).cos45^(@)) is equal to

If E=cos^(2)71^(@)+cos^(2)49^(@)+cos71^(@) cos 49^(@) , then the value of 10E is equal to

If E=cos^(2)71^(@)+cos^(2)49^(@)+cos71^(@) cos 49^(@) , then the value of 10E is equal to

Value of (1-(cos61^0)/(cos1^0))*(1-(cos62^0)/(cos2^0))*(1-(cos63^0)/(cos3^0)) .......... *(1-(cos119^0)/(cos59^0)) (a) -1 (b) 1 (c) 2 (d) -2

cos1^(@)*cos2^(@)*cos3^(@).........cos179^(@) is equal to :

cos^(-1) (cos (2 cot^(-1) (sqrt2 -1))) is equal to

cos^(-1) (cos (2 cot^(-1) (sqrt2 -1))) is equal to