यदि \(ab = \frac{c}{d}\) और \(cd = \frac{a}{b}\) है, तो निम्नलिखित में से कौन सा सत्य है?

1
a2 + b2 = 0
2
a2b2 = 1
3
b2d2 = 1
4
b = d

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Quick Navigation