Question

if theta is 45 then what is value of 2sec2 theta +3 cosec2 theta?

Answer 1

Answer:not defined/∞

Step-by-step explanation:

2 sec(90°)+3cosec(90°)

∞+3

=∞

And ∞ is not defined.

Answer 2

Answer:

3+2(infinity)

• here θ = 45° then

• sec2θ =sec 2(45°)=sec90°=infinity

• in the same way csc2θ=csc 2(45°)=csc90°=1

• according to question 2 sec2θ + 3 cosec2θ

• equals to 2(infinity)+3(1)

I hope this helps you