Question

ii) প্রমান কর যে,
cosec222°. Cot268° = sin222 + sin268 + cot268°
+​

Answer 1

Answer:

see the picture okay................

Answer 2

Answer:

Sin22= sin90-68=cos68 And sin 27= sin 90-63 = cos 63 Hence the given expression = cos^2 68+ sin^2 68/cos^222+sin^222 +sin^363+cos63.cos63 =1/1+ sin^263+cos^363 =1+1=2