Please help fast! marking brainliest! math!!!

Mathematics

2 answers:

krek1111 [17]3 years ago

6 0

The answer is 3 sqrt 2 units

dimaraw [331]3 years ago

3 0

It is the first one 1/3-2 units

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Drupady [299]

Answer:

Step-by-step explanation:

On edg 2020

8 0

2 years ago

Cos²45+Sin²60 + sin^2 30

denpristay [2]

Step-by-step explanation:

${ \cos}^{2} 45 \degree + { \sin}^{2} 60 + { \sin}^{2} 30 \degree \\ = \bigg( \frac{1}{ \sqrt{2} } \bigg)^{2} + \bigg( \frac{ \sqrt{3} }{ 2} \bigg)^{2} + \bigg( \frac{1}{2} \bigg)^{2} \\ \\ = \frac{1}{2} + \frac{3}{4} + \frac{1}{4} \\ \\ = \frac{2}{4} + \frac{3}{4} + \frac{1}{4} \\ \\ = \frac{2 + 3 + 1}{4} \\ \\ = \frac{6}{4} \\ \\ = \frac{3}{2} \\ \\ = 1 \frac{1}{2} \\$