find the value of tan (45-A) tan(45+A)
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Answered by
8
Step-by-step explanation:
L.H.S = tan(45° + A).tan(45° + A) = (1 + tanA)/(1 - tanA) . (1 - tanA)/(1 + tanA) = 1 = R.H.S
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Answered by
1
Answer:
(a-b)(a+b)=a²-b²
(45-A)(45+A)= 45²-A²
2025-A²=0
A=√2025
A=45
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