`sin2 0^(@)*cos4 0^(@)+cos2 0^(@)*sin4 0^(@)=sqrt(3)/2`

Show that sin70^(0)cos10^(0)-cos70^(0)sin10^(0)=(sqrt(3))/(2)

Evaluate (2cos4 0^(@)-cos2 0^(@))/(sin2 0^(@)

Show that sin 70^0 cos 10^0 - cos 70^0 sin 10^0 = sqrt(3)/2

cos4 0^(@)+cos2 0^(@))=3(cos1 0^(@)+sin2 0^(@)) 40 CUSOUcos 40^@ + cos 20O 4(cos310^@ + sin320^@) = 3(cos 10^@ + sin20^@)N3.1 = 4

" The value of "(sin1^(0)+sin3^(0)+sin5^(0)+sin7^(0))/(cos1^(0)*cos2^(0)*sin4^(0))" is "

Prove that: (cos30^0+sin60^0)/(1+cos60^0+sin30^0)=(sqrt(3))/2

2sin^(2)x+sqrt(3)cos x+1=0

4(sin24^(0)+cos6^(@))=sqrt(3)+sqrt(15)