Find the period of the function y= 2/3 cos(4/7^x) + 2
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T = 2 π / | 4/7 |
T = 2 π / 4/7
T = 2 π × 7 / 4
T = 7 π / 2
Thus the correct answer is option A .
Answer:
The option is A
Step-by-step explanation:
T = 2 π / | 4/7 |
T = 2 π / 4/7
T = 2 π × 7 / 4
T = 7 π / 2
Hope this answer helps you :)
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Mark brainliest