sofipalis9869
31.08.2021 •
Mathematics
Find the value of ( x-5,9) = (4x-5 , y+3)
please answer
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Ответ:
step-by-step explanation:
it s given that and .
also, we know that and , therefore
hypotenuse=8, base=t and perpendicular=s.
now, using trigonometery, we have
substituting the given values, we have
which is the required value of cosy.