Answer this question please

Mathematics

1 answer:

Keith_Richards [23]3 years ago

8 0

Answer:

see attached

Step-by-step explanation:

You might be interested in

Using sum or difference formulas, find the exact value of sin(165∘)

Nikitich [7]

$\bf \textit{Sum and Difference Identities}
\\ \quad \\
sin({{ \alpha}} + {{ \beta}})=sin({{ \alpha}})cos({{ \beta}}) + cos({{ \alpha}})sin({{ \beta}})
\\ \quad \\
sin({{ \alpha}} - {{ \beta}})=sin({{ \alpha}})cos({{ \beta}})- cos({{ \alpha}})sin({{ \beta}})\\\\
-------------------------------\\\\$

$\bf sin(165^o)\implies sin(120^o+45^o)
\\\\\\
sin(120^o)cos(45^o)~+~cos(120^o)sin(45^o)\implies \cfrac{\sqrt{3}}{2}\cdot \cfrac{\sqrt{2}}{2}~+~\cfrac{-1}{2}\cdot \cfrac{\sqrt{2}}{2}
\\\\\\
\cfrac{\sqrt{6}}{4}~-~\cfrac{\sqrt{2}}{4}\implies \cfrac{\sqrt{6}-\sqrt{2}}{4}$

6 0

3 years ago

How many British Pounds are in 314 Japanese Yen? (1 British Pound = $1.50; 107 Yen = $1.00)

Setler [38]

195.638

that's some weird logic but ok

4 0

2 years ago

Read 2 more answers

Solve the system of linear equations.

Ronch [10]

Answer:

there is no solution, meaning the lines would be parallel