Math, asked by arman979, 10 months ago

prove that (tantheta+2)(2tantheta+1)=5tantheta+2sec²theta​

Answers

Answered by rishichoudhury122
0

Step-by-step explanation:

( tanx+2)(2tanx+1)

= 2tan²x+ tanx + 4tanx + 2

= 2(tan²+1) + 5tanx

= 2sec²x + 5tanx { tan²x+1= sec²x}

I just replaced theta by x, for convenience to type..... please write the variable in the question

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