Question

4. show that seco+tan0= cos0/
1-sino​

Answer 1

Answer:

sec theeta + tan theeta

1/cos theeta + sin theeta / cos theeta

1+sin theeta / cos theeta

multiply [ 1- sin theeta] on both numerator and denominator

[1+sin theeta/cos theeta][1-sin theeta/1-sin theeta]

1-sin^2 theeta/cos theeta[1-sin theeta]

cos^2 theeta/cos theeta[1-sin theeta]

cos theeta/1-sin theeta