The answer is 30
(You use the SOHCAHTOA) and in this one you use TOA [tan30°= opposite/adjacent]
(You use the SOHCAHTOA) and in this one you use TOA [tan30°= opposite/adjacent]
Help pls the first questions option is 25,40,75 And the next option is 40,75,140
1 answer:
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Add 1 to both sides:
In cases like this, we have to remember that a root is always positive, so we can square both sides only assuming that
Under this assumption, we square both sides and we have
The solutions to this equation are
But since we can only accept solutions greater than -1, we discard and accept
.
In fact, we have
and
which is the only solution.