`(1-cos 61^@ /cos 1^@)(1-cos 62^@ / cos2^@)(1-cos 63^@/cos 3^@)...(1- cos119^@/cos59^@)`

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

cos 1^(@) + cos 2^(@) + cos 3^(@) + ... + cos 179^(@)=

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

The value of cos 1^@ cos 2^@ cos 3^@... cos 179^@ is

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

cos1^(@)+cos2^(@)cos3^(@)...+cos179^(@)" is "

cos 1^(@)cos2^(@) cos3^(@) ..... cos 180^(@) .......

The value of cos1^@cos2^@cos3^@....cos180^@ is