Math, asked by anish4686, 7 months ago

sin 4x = cos 5x therefore x = ?

Answers

Answered by sai172982

1

Answer:

see the above attachment my frnd

Attachments:

Answered by nellurigopikumar

0

Step-by-step explanation:

sin 4x = cos 5x

sin 4x = sin (90°-5x) [ #cos x = sin(90°-x) ]

therefore 4x = 90°-5x

4x + 5x = 90°

9x = 90°

x = 90°/9

x = 10°

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