Mathematics · Algebraic Identities
यदि bc + cd = 2bd और a + c = 2b है, तो निम्नलिखित में से कौन सा एक सही है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ad + bc = 0
- 2ad - bc = 0✓
- 3ac - bd = 0
- 4ab - cd = 0
सही उत्तर देखें
ad - bc = 0
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