MCQ
રેખાઓ $x\ cos\alpha_1 + y\ sin\alpha_1 = p_1$ અને $x\ cos\alpha_2 + y\ sin\alpha_2 =$ $p_2$ વચ્ચેનો ખૂણો :
- A$(\alpha_1 + \alpha_2)$
- ✓$|(\alpha_1 - \alpha_2)|$
- C$2\alpha_2$
- D$2\alpha_1$
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