Question

AUGUST 2018 / SEPTEMBER 2018
31 Friday ( operatorname{Proven}_{sin 10^{circ}}-frac{sqrt{3}-4}{cos 10^{circ}}=4 )
( sin (alpha-beta)]_{20}=frac{4}{sin 20^{circ}} ldots ldots ldots ldots )
( y-4 frac{sin left(30^{circ}-10^{circ}right)}{sin 20^{circ}} ldots ldots ldots ldots )
( =frac{4 sin 20^{circ}}{sin 20^{circ}} )
begin{tabular}{c}
( =sqrt{4} )
hline 3 Monday - Gopal Kala ( = ) RHS.
end{tabular}
Hence Proved

# 17. Prove that 17. Prove that sin too V3 cos 10° = 4. 4 sin 10°

Solution