3 years ago

Which expression is equivalent 5y3/(5y)-2

Mathematics

1 answer:

Alinara [238K]3 years ago

5 0

Answer:

Step-by-step explanation:

You know it the answer is 5:12 so you add the 5 and 3 give you 8 then you get 5:12

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Simplify the expression 5 √(2 + √(18))

valentinak56 [21]

$5\sqrt{2+3\sqrt{2}}$

3 0

3 years ago

Is cot 4 a is equal to tan (a - 20) where 4a is an acute angle find the value of a

loris [4]

Answer:

a = 22

Step-by-step explanation:

$cot \: 4a = tan \: (a - 20)....(given) \\ \\ \implies \: tan(90 - 4a) = tan \: (a - 20) \\ [\because \: cot \theta = tan(90 \degree - \theta) ]\\ \\ \implies (90 - 4a) = tan(a - 20) \\ \\ \implies \: 90 + 20 = 4a + a \\ \\\implies \: 110 = 5a \\ \\ \implies \: a = \frac{110}{5} \\ \\ \huge \red{ \boxed{\implies \: a = 22}}$