A = a cosec θ + b cot θ এবং B = a cot θ + b cosec θ হলে, A2 - B2 এর মান কত?

1
ab
2
(a + b)
3
(a2 - b2)
4
(a - b)

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Quick Navigation