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Simplify the following expressions: A = (cos(x) + sin(x))2 + (cos(x) - sin(x))2
Mathematics
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سأقوم بحل التمرين 3.
التمرين 3
1. تبسيط التعبيرات التالية:
- أ) نستخدم المتطابقات التربيعية و .
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