Step-by-step explanation:
We are given two Triangles and we need to prove them congruent . In ∆AOC and ∆BOD , we have
Therefore by AAS congruent condition we can say that ,
Hence Proved!
Solve the equation algebraically. Calculus section 1.5 of textbook 2^x + 2^-x = 5
1 answer:
The value of x from the given expression is
Given the algebraic expression below;
2^x + 2^-x = 5
This can also be expressed as:
1/2^x+ 1/2^x = 5
Let P = 2^x, such that;
P + 1/P = 5
P²-1/P = 5
P²-1 = 5P
P²-5P-1=0
On factrorizing, then;
P =
Since 2^x = P, then;
Hence the value of x from the given expression is
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