pls help with q3b thank you!!

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secondary 4 A Maths Singapore

pls help with q3b thank you!!

Date Posted: 2 years ago

Cos-1 both sides to get thether-25.6=cos-1(3/square root 180)
Thtether=cos-1(3/square root 180)+25.6

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Date Posted: 2 years ago

Coral

2 years ago

thank you!!