Please solve any of three ....plzz help me its really very urgent. .
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Use cos∅ = sin(90°-∅) in all the three..and cancel sin both sides.. Or u can take sin-¹..u wipl study in higher classes
1. ∅=27°
2.∅=10°
3.∅=18°
1. ∅=27°
2.∅=10°
3.∅=18°
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