Answer:
in step 4
Step-by-step explanation:
we have

so step 1 is correct
step 2

so step 2 is correct
step 3

so step 3 is correct
step 4

so step 4 is incorrect
Answer:

Step-by-step explanation:
Divide both sides by 9 to isolate x:

Hope this helps!
Sin x =cos 19
X =sin^1(cos 19)
X=71
Answer:
There are no errors
Step-by-step explanation:
The math is correct
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