Question

If sinA+cosA=√3,then prove that tanA+cotA=1. Please solve this problem

Answer 1

Answer:

Step-by-step explanation:

SinA + cosA = √3

Squaring on both sides we get,

(SinA + cosA)² = (√3)²

Sin²A + cos²A +2sinAcosA = 3

1 + 2sinAcosA = 3

2sinAcosA = 3-1

SinAcosA = 2/2

sinAcosA = 1......................(i)

tanA+cotA = 1

sinA/cosA + cosA/sinA = 1

sin²A + cos²A /sinAcosA = 1

1/sinAcosA = 1

sinAcosA = 1.....................(ii)

i = ii

thus tanA + cotA = 1

Answer 2

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