[" If "a=sin170^(@)+cos170^(@)" then "],[[" 1) "a>0," 2) "a<0quad " 3) "a=0quad 4" ) "a=1]]

36.If a=sin170^(@)+cos170^(@) then

If a sin 170+cos170, then

cos170^(@)cos150^(@)cos130^(@)cos110^(@)=

Statement-1: cos10^(@)+cos20^(@)+…..+cos170^(@)=0 Statement-2: cos alpha+cos(alpha+beta)+....+cos(alpha+(n-1)beta)=(cos(alpha+((n-1)beta)/(2))sin((nbeta)/(2)))/(sin((beta)/(2))), beta ne 2npi.

Statement-1: cos10^(@)+cos20^(@)+…..+cos170^(@)=0 Statement-2: cos alpha+cos(alpha+beta)+....+cos(alpha+(n-1)beta)=(cos(alpha+((n-1)beta)/(2))sin((nbeta)/(2)))/(sin((beta)/(2))), beta ne 2npi.

Which one of the following is the value of cos 170^@ cos 10^@ - sin 170^@ sin 10^@

If an interior of a regular poly gon is 170^(@) ,then the number of sides of the polygon is

Find the LCM of 160, 170 and 90.

Sin^(2)50^(@)+Sin^(2)70^(@)+Sin^(2)170^(@)=