Question

If sin A = 3/5 find 2+2tan ×tan A

Answer 1

Answer:

Explanation:

Sin a= perp/ hypo

Base =4

Tana= 3/4

2+2×3/4×3/4

=2+9/8

=16+9/8=25/8

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Answer 2

Answer: 25 / 8

Explanation:

Sin A = 3 / 5 = P / H

By pythagoras theorm ,

B = √H^2 - P^2

= (√5^2 - 3^2) = (√25 - 9)

= √16 = 4

Tan A =3 / 4

2 + 2tan A * tan A

2 + 2 (tan A)^2

2 + 2 (3/4)^2

2 + 2 (9/16)

2 + (9/8)

(16 + 9) / 8

25 / 8

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