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The functions 𝑔 and ℎ are given by           𝑔⁡(𝑥)=log4⁡(2⁢𝑥)            ℎ⁡(𝑥)=(𝑒𝑥)5𝑒(1/4).(i) Solve 𝑔⁡(𝑥)=3 for values of 𝑥 in the domain of 𝑔.(ii) Solve ℎ⁡(𝑥)=𝑒(1/2) for values of 𝑥 in the domain of ℎ.

Question

The functions 𝑔 and ℎ are given by           𝑔⁡(𝑥)=log4⁡(2⁢𝑥)            ℎ⁡(𝑥)=(𝑒𝑥)5𝑒(1/4).(i) Solve 𝑔⁡(𝑥)=3 for values of 𝑥 in the domain of 𝑔.(ii) Solve ℎ⁡(𝑥)=𝑒(1/2) for values of 𝑥 in the domain of ℎ.

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Solution

(i) To solve the equation g(x) = 3, we first substitute g(x) with its definition, which gives us log4(2x) = 3. The logarithmic equation can be rewritten in exponential form as 4^3 = 2x. Simplifying this gives 64 = 2x. Dividing both sides by 2, we find that x = 32.

(ii) To solve the equation h(x) = e^(1/2), we first substitute h(x) with its definition, which gives us (e^x)^5 * e^(1/4) = e^(1/2). Simplifying the left side gives us e^(5x + 1/4) = e^(1/2). Since the bases are equal (both are e), we can set the exponents equal to each other, which gives us 5x + 1/4 = 1/2. Solving for x, we subtract 1/4 from both sides to get 5x = 1/4, and then divide by 5 to find that x = 1/20.

This problem has been solved

Similar Questions

The functions 𝑔 and ℎ are given by          𝑔⁡(𝑥)=log5⁡(4⁢𝑥-2)          ℎ⁡(𝑥)=sin-1⁡(8⁢𝑥).(i) Solve 𝑔⁡(𝑥)=3 for values of 𝑥 in the domain of 𝑔.(ii) Solve  ℎ⁡(𝑥)=𝜋4 for values of 𝑥 in the domain of ℎ.

The function 𝑓 is given by 𝑓𝑥=log2𝑥. What input value in the domain of 𝑓 yields an output value of 4 ?

What is the domain of the logarithmic function 𝑦=log2(𝑥)?

What is the domain of the logarithmic function 𝑦=log3(𝑥)?

Select the correct answer.Which function defines (𝑔⋅𝑓)⁢(𝑥) ?𝑓⁡(𝑥)=log(5⁢𝑥)𝑔⁡(𝑥)=5⁢𝑥+4 A. (𝑔⋅𝑓)⁢(𝑥)=5⁢𝑥log(5⁢𝑥)+4 B. (𝑔⋅𝑓)⁢(𝑥)=5⁢𝑥+4+log(5⁢𝑥) C. (𝑔⋅𝑓)⁢(𝑥)=5⁢𝑥−4−log(5⁢𝑥) D. (𝑔⋅𝑓)⁢(𝑥)=5⁢𝑥log(5⁢𝑥)+4log(5⁢𝑥)

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