Answer:
its a fruit
Step-by-step explanation:
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Answer:
ℓ = 1.5
Step-by-step explanation:
An equation 10(23+7)=100ℓ+100ℓ is given and we are asked to find the value of ℓ.
To solve the equation, we have to move all the values containing ℓ on one side and other values on other side of equality.
10(23+7)=100ℓ+100ℓ
Multiply 10 with 23 and 7 which gives
(10 * 23 ) + ( 10 * 7) = 200 ℓ
Solving the above equation,
230 + 70 = 200 ℓ
300 = 200 ℓ
=> ℓ = 300 / 200
=> ℓ = 3/2
=> ℓ = 1.5
Answer: y + 5 = -8 ( x - 5 )
Step-by-step explanation:
Answer: see proof below
Step-by-step explanation:
Given: A + B + C = π → A + B = π - C
→ C = π - (A + B)
Use Sum to Product Identity: cos A + cos B = 2 cos [(A + B)/2] · cos [(A - B)/2]
Use Product to Sum Identity: 2 sin A · sin B = cos [(A + B)/2] - cos [(A - B)/2]
Use the Double Angle Identity: cos 2A = 1 - 2 sin² A
Use the Cofunction Identity: cos (π/2 - A) = sin A
Proof LHS → RHS:
LHS: cos A + cos B + cos C
= (cos A + cos B) + cos C
The proof for this is simple. Let's say that A + B + C = π. From here on we require several trigonometric identities that must be applied.
Hope that helps!