Given triangle is a right angle triangle so we are allowed to use trigonometric formulas.
We want to find Hypotenuse using angle A and base 7 cm
so right choice is to use cosine





Hence value of side AB is approx 7.72 cm.
Answer:
the principal
Step-by-step explanation:
Answer: 2x+11x+1x+1=2x2+x+2xx
Step-by-step explanation:
Step 1: Factor both the numerator and the denominator. ...
Step 2: Write as one fraction. ...
Step 3: Simplify the rational expression. ...
Step 4: Multiply any remaining factors in the numerator and/or denominator. ...
Step 1: Factor both the numerator and the denominator.
Step 2: Write as one fraction.
If you factor it you will get:
(z+ 1)(x + y)
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