Question

plz solve this one plz plz​

Answer 1

Answer:5

Step-by-step explanation: sec^2x=1+tan^2x

1/10(4^2+2×(1+4^2))

1/10(16+2(1+16)

1/10(16+2(17)

1/10(16+34)

1/10(50)

5