प्रश्न संख्या 6 से 10 के मान ज्ञात कीजिए:
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मान ज्ञात कीजिए:
हम जानते हैं कि
तो इस प्रकार
हम जानते हैं कि
तो इस प्रकार
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Answer:
Step-by-step explanation:
मान ज्ञात करना है -
coes(-1410°) = - cosec 1410°
[∵ cosec(-θ) = - cosecθ ]
= - cosec ( 16 × 90° - 30° )
= - cosec ( 4 × 360° - 30° )
= - cosec ( 4 × 360° - 30° )
= - cosec (-30°) [∵ cosec(360°+θ) = cosecθ]
= cosec 30° [ ∵ cosec(-θ) = - cosecθ ]
= 1/sin30°
= 1/1/2 [∵sin30° = 1/2 ]
= 2
cosec 30° = 2
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