Question

2 cos3x = 1 हो तो एक्स का मान​

Answer 1

Answer:

Method 1: Check for settings.

1. Press Windows key and go to Settings > System > Notifications & Actions.

2. On the right pane, click on Turn system icons on or off.

3. Switch On, by clicking on the button next to Network.

4. Check if the icon is now available on the bottom right corner of the Taskbar.

Answer 2

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Formula:-

cos 60° = (1/2)

Processor to solve:-

Substitute the formula, cancel the results and proceed your way for the final answer.

Solution:-

=> 2 cos3x = 1 (Given)

=> cos3x = (1/2)

=> cos3x = cos 60°

=> 3x = 60°

Hence,

=> x = 20°

Thankyou~