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13-05-2022
Mathematics

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Find the value of X

Find the value of X class=

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Hrishii Hrishii

13-05-2022

Answer:

x = 14

Step-by-step explanation:

By tangent secant theorem

[tex] x^2 = 7(7+21)[/tex]

[tex]\implies x^2 = 7(28)[/tex]

[tex]\implies x ^2=196[/tex]

[tex]\implies x=\pm\sqrt{196}[/tex]

[tex]\implies x=\pm 14[/tex]

x can not be negative

[tex]\implies x=14[/tex]

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