যদি A সূক্ষ্মকোণ এবং cosA = 4/5 হয়, তবে tanA এর মান কত?
Created: 2 years ago |
Updated: 5 months ago
best des
3/4।
যদি A সূক্ষ্মকোণ এবং cosA = 4/5 হয়, তবে sinA = √(1 - cos^2A) = √(1 - (4/5)^2) = √(9/25) = 3/5।
tanA = sinA / cosA = (3/5) / (4/5) = 3/4
সুতরাং, tanA এর মান 3/4।
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