In a right triangle ABC , right angled at B,if tan A= 1,then find the value of 2sinAcosA
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Answer:
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Step-by-step explanation:
Given, tanA = 1
⇒ sinA/cosA = 1
⇒ sinA = cosA ...(1)
Moreover, tanA = 1
⇒ tanA = tan45°
⇒ A = 45°
Hence,
⇒ 2sinA cosA
⇒ 2sinA x sinA
⇒ 2sin²A
⇒ 2(1/√2)² = 2(1/2)
⇒ 1
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