Question

sSimplify
sec A(1-sin A) (secA + Tan a)​

Answer 1

Answer:

1

Step-by-step explanation:

see the photo for explanation.....

Answer 2

Answer:

3x(4x−5)+3=12x2−15x+3

x=3 gives the value 12(9)−15×3+3

                                          =108−45+3

                                          =66