please help me by answering this question
Attachments:
Answers
Answered by
0
Answer:
we can solve this by arranging in a right way such as we can do in algebraic expression
Answered by
0
Step-by-step explanation:
tan9A=tan(5A+4A)
tan9A=tan5A+tan4A/1-tan5Atan4A
tan5A+tan4A=tan9A-tan9Atan5Atan4A
tan9Atan5Atan4A=tan9A-tan5A-tan4A
proved
Similar questions