Answer:
(6a + 5b)(6a - 5b)
Step-by-step explanation:
Rewrite the expression in the form of a² - b²:
(6a)² - (5b)²
Use the difference of squares (a² - b² = (a + b)(a - b)):
(6a + 5b)(6a - 5b)
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Answer:
n = 16
Step-by-step explanation:
Step 1: Cross multiply
6(n - 7) = 2(2n - 5)
Step 2: Distribute
6n - 42 = 4n - 10
Step 3: Subtract 4n on both sides
2n - 42 = -10
Step 4: Add 42 to both sides
2n = 32
Step 5: Divide both sides by 2
n = 16
Answer:
Solution given:
cos(90-θ)=BC/CA
we have
cos(90-θ)=Cosθ
so
ratio of cosθ is <u>BC/CA</u>
