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मान ज्ञात कीजिए: 4⁢ cos^3 ⁡60° + cosec⁢ 30° tan^2 ⁡30°

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Question

मान ज्ञात कीजिए: `(4 cos^3 60^° + "cosec"  30°)/(tan^2 30°)`

Evaluate
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Solution

त्रिकोणमितीय मानों को प्रतिस्थापित करना:

cos⁡ 60∘ = `1/2`

cosec 30° = 2

tan 30° = `1/sqrt3`

अभिव्यक्ति:

= `(4(1/2)^3 + 2)/(1/sqrt3)^2`

= `(4(1/8) + 2)/(1/3)`

= `(1/2 + 2)/(1/3)`

= `(5/2)/(1/3)`

= `5/2 xx 3`

= `15/2 or 7.5`

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2025-2026 (March) Basic - 430/5/3
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