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प्रश्न
If sinθ = cosθ and 0° < θ<90°, find the value of 'θ'.
उत्तर
sinθ = cosθ
⇒ `"sinθ"/"cosθ" = "cosθ"/"cosθ"`
⇒ tanθ = 1
⇒ tanθ = tan45°
⇒ θ = 45°.
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