Answer:
cosine = √31/6
Step-by-step explanation:
It is given that,
sine=√5/6
we know that, sine = opposite side/Hypotenuse
To find Adjacent side
Adjacent side = √(Hypotenuse² - opposite side²)
Adjacent side =√(6² - √5² ) = √(36 - 5 ) = √31
To find cosine
cosine = Adjacent side/Hypotenuse
cosine = √31/6
