Question

Help me plsssss plssss plsssss i will double kiss you

Answer 1

A

Explanation:

Sin A =
`(opposite)/(hypotenuse)`

Cos A =
`(adjacent)/(hypotenuse)`

Answer 2

`\text{a.} \quad \sin A=(3)/(5), \quad \cos A=(4)/(5)`

Explanation:

Trigonometric ratios

`\sf \sin(\theta)=(O)/(H)\quad\cos(\theta)=(A)/(H)\quad\tan(\theta)=(O)/(A)`

where:

• 
  `\theta` is the angle.
• O is the side opposite the angle.
• A is the side adjacent the angle.
• H is the hypotenuse (the side opposite the right angle).

Therefore:

`\implies \sin A =(BC)/(AB) = (3)/(5)`

`\implies \cos A =(AC)/(AB) = (4)/(5)`