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SOVA2 [1]
3 years ago
14

7.

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer:

7

Step-by-step explanation:

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Find the value of tanθ, if cosθ = 4/5 ; 0° ≤ θ&lt; 90°
Montano1993 [528]

Answer:

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Step-by-step explanation:

<u>Given </u>

  • cosθ = 4/5
  • 0° ≤ θ < 90°

<u>In the first quadrant both sine and cosine are positive, so as tangent.</u>

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4 0
3 years ago
X squared plus 8 squared equals 9<br> What is X?
BabaBlast [244]

Answer:

x = i\sqrt{55} , -i\sqrt{55}

Step-by-step explanation:

x^2 + 8^2 = 9

Simplify the 8^2

x^2 + 64 = 9

Subtract 64 from both sides

x^2 = -55

Take the square root from both sides

x = +/- \sqrt{-55}

Simplify

x = i\sqrt{55} , -i\sqrt{55}

Hope this helps!

4 0
3 years ago
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