Mathematics · Trigonometry
यदि x = sin A + cos A और y = sec A + cosec A है, तो निम्नलिखित में से कौन सा संबंध सत्य है?
- 1y - 2x = x2y
- 2y(1 - 2x2) = x
- 3y(1 + x2) = 2x
- 4y + 2x = x2y✓
सही उत्तर देखें
y + 2x = x2y
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