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If , find the value of cos θ.

Answer (Detailed Solution Below)

Option 3 :

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∴ sin2 θ + cos2 θ = 1

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Q1.A ladder is resting on the ground with the top end in contact with the top of a wall of a height of 12 metres. If the length of the ladder is 13 metres, at what distance from the wall is the base of the ladder on the ground?
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