Question

find the value of x, when it give that cos(4x-10)=0

Answer 1

cos (4x-10)=0
cos (4x-10)=cos90
4x-10=90
4x=100
x=25


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Answer 2

Answer : 25

Solution :
__________

Given that :

$\cos(4x - 10) = 0 \\ \\ = > 4x - 10 = { \cos}^{ - 1} 0 \\ \\ AS s \: we \: know \: that :\: { \cos }^{ - 1} 0 = 90 \\ \\ = > 4x - 10 = 90 \\ \\ = > 4x = 100 \\ \\ = > x = \frac{100}{4} = 25$

So, the value of x will be 25