Question

tan a
cot 0
+
= 1 + sec 0 cosec 0
1-cot 0 1 -tan
​

Answer 1

Steps of doing

• Write the expression in terms of sinQ and cosQ
• Then simplify the LHS
• Take minus sign common from right side
• Take LCM you will find sinQ^3-cosQ^3
• Solve this using identity
• After the simplification you will find the same thing as RHS
• Hence it is proved

Answer 2

Step-by-step explanation:

Sin 8 (1 +sin8/cos8) +cos8 (1+cos8 /sin8)

=sin8 (cos8+sin8 /cos 8)+cos 8(sin 8+cos 8/sin 8

taking cos 8+sin 8 comman

=cos 8 +sin 8 (sin 8 /cos 8 +cos 8 /sin 8