Math, asked by sulaimansulaimans195, 3 months ago

3
(क) यदि 2cos 3x = 1 है, तो x का मान ज्ञात कीजिए।
दरी 6

Answers

Answered by praveenpraveenbiskar

1

Answer:

10

Step-by-step explanation:

2cos3x=1

cos3x= 1/2

cos3x=cos30°

I.e. 3x=30

or, x=30/3

:. x=10

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