Question

5 tan² A – 5 sec² A + 1 is equal to :
a) 6
b) -5
c) 1
d) -4​

Answer 1

Answer:

5tan^2 A - 5sec^2 A + 1

5(1-sec^ 2 )-5sec^ 2 +1

5 - 5sec^2 - 5 * sec^2 1

5 - 10sec^2 1

- 10sec^2 6 = o

-10sec^ 2 =-6

sec^ 2 =3/5

Answer 2

Answer:

option d is correct

Step-by-step explanation:

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