Physics · Theory of Structures
निम्नलिखित में से कौन सा सूत्र यह दर्शाता है कि दिया गया फ्रेम एक पूर्ण फ्रेम (perfect frame) है? (जहाँ n = फ्रेम में सदस्यों की संख्या और j = जोड़ों की संख्या है)
- 1n = 2 - j
- 2n = 3j - 2
- 3n = j - 3
- 4n = 2j - 3✓
सही उत्तर देखें
n = 2j - 3
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