2 years ago

Find the value of X

Mathematics

1 answer:

devlian [24]2 years ago

8 0

Answer:

x = 14

Step-by-step explanation:

By tangent secant theorem

$x^2 = 7(7+21)$

$\implies x^2 = 7(28)$

$\implies x ^2=196$

$\implies x=\pm\sqrt{196}$

$\implies x=\pm 14$

x can not be negative

$\implies x=14$

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