Prove that   `("cos  "  6x + " cos  "  4x)/("sin " 6x -  "sin "  4x)  =  " cot  x`
Channel: Doubtnut
Date: 2020-04-19

Prove that   `("cos  "  6x + " cos  "  4x)/("sin " 6x -  "sin "  4x)  =  " cot  x`