Question

3) secx will not be defined for x = *

0
(2n+1)π/2
(n+1)π

4) If tanz=t then the value of tan2z= *

2t/1-t
2t/1-t²
2t/(1-t)²​

Answer 1

Answer:

where is the question please tell

Answer 2

Step-by-step explanation:

4)

Formula for tan2z is 2tanz / 1-tan²z

So ans is 2t/1-t²