Question

7 sec =25 evaluation 1-sin/1-cos​

Answer 1

Step-by-step explanation:

sec =25/7

=>cos=7/25

=>sin=24/25(Pythagoras theorem)

1-sin=1/25.....1

1-cos=13/25......2

=>1/2=1/13

Answer 2

Maths ch 8 if 7 sec Q, evaluate 1-sin2Q/1-cos2Q