sin²A +(1+cosA)²please can you solve this
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Answered by
2
Answer:
Step-by-step explanation:
1-cos^2A+(1+cosA)^2
=>1-cos^2A+1+cos^2A+2cosA
=>2+2cosA
=>2(1+cosA)
Answered by
2
Answer:
= Sin²A + (1 + cosA )²
= sin²A + 1 + cos²A + 2 cosA ; [ (a + b)² = a² + b² + 2ab]
= sin²A + cos²A + 1 + 2 cosA
= 2 + 2 cosA
= 2 ( 1 + cos A )
= 2 [ 2 cos² (A/2) ]
= 4 cos²(A/2)
HOPE YOU LIKE MY ANSWER...
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