ashley071718 ashley071718

26-05-2021
Mathematics

contestada

Please help!!! Trigonometry is so complicated to me

Please help Trigonometry is so complicated to me class=

Respuesta :

abidemiokin abidemiokin

31-05-2021

Answer:

x = 4

Step-by-step explanation:

Given that sin(13x) = cos(9x+2)

Since sintheta = cos(90 - theta)

hence sin (13x) = cos (90 -13x)

Substitute into the original equation

cos (90 -13x) = cos(9x+2)

90-13x = 9x+2

-13x - 9x = 2 - 90

-22x = -88

x = 88/22

x = 4

Hence the value of x is 4

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