Answer:
Adnan is incorrect because cosx and sin(90 - x) are always equivalent in any right triangle ⇒ first answer
Step-by-step explanation:
In any right triangle there are two acute angles sum of them is 90°
∴ If one of them x°, then the other is (90 - x)°
∵ cos x = adjacent/hypotenuse
∵ sin(90 - x) = opposite/hypotenuse
∵ The opposite of ∠(90 - x) is the adjacent of ∠x
∴ cosx = sin(90 - x)
b−n=1bn.
Exact form: 1/9
Decimal form: 0.1
Have a good day! :)
where is the diagram? please provide the diagram.
B
you have to put them a equation
like
example: 2m + 10
hope this help
