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शशात कीजिए।|QNo.4. Which value of x satisfy 15sin.x = cosxheat (n-1X का कौन सा मान समीकरण 5sin x = cosx कोसंतुष्ट कर

Answer»

30° is the correct answer to this question . √3sin30°=√3×1/2=√3/2and ,cos30°=√3/2

√3sinx=cosxcosx/sinx=√3cotx=√3cotx=cot30therefore x=30

30°is correct answer

√3sinA= cosAsinA/cosA= 1/√3tanA=tan30A=30°

answer is cos X =√3/2 and cos √3/2 Value. is 30°



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