Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Trigonometry

यदि ∆ABC एक समकोण त्रिभुज है जो A पर समकोण है, तो tan B × tan C का मान है: 

1
-1
2
0
3
1
4
∞
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