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  4. If cos∅=-0.5 The value of ∅ could be A.120° or 240° B.60° or 120° C.-60°...

If cos∅=-0.5 The value of ∅ could be A.120° or 240° B.60° or 120° C.-60°...

If cos∅=-0.5
The value of ∅ could be
A.120° or 240°
B.60° or 120°
C.-60° or 240°
D.120 or 300?
In Mathematics
4 Answers Available
Asked by Tega on 28th July, 2020
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC offline past questions - with all answers and explanations in one app - Download for free
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709