Answer (5)&(6) questions
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Sin^2¢ + 2sin¢ cos ¢ + cos ^2¢ + sin ^2¢ - 2sin¢ cos¢ + sin^2¢
= (Sin^2¢ + cos ^2¢ ) + ( sin^2¢ + cos^2¢)
= 1 +1
= 2
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Answer:
166.42 cm²
Step-by-step explanation:
Area of shaded region = Area of big circle - Area of small circle
= 22/7 x 8 x 8 - 22/7 x 3 x 3
= 22/7 ( 64 - 9 )
= 22/7 x 53
= 166.42 cm²
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