Solve this : 62 . lim x → 0 log sin 7 x + cos 7 x sin 3 x equals . ( a ) 1 3 log 7 ( b ) 7 3 ( c ) 14 3 ( d ) 1 3 Share with your friends Share 0 Brijendra Pal answered this Hi, limx→0logsin7x+cos7xsin3x It is 0/0 form so using L'hospital rule = limx→0ddxlogsin7x+cos7xddxsin3x =limx→01sin7x+cos7x×7cos7x-7sin7x3cos3x =713= 73 0 View Full Answer