Answers

2015-10-20T18:18:48+05:30
Kindly go through the upload i solved it..
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can you say how did you kept picture
2015-10-20T18:45:53+05:30
A + B = 90°
⇒ B = (90-A)

sin B = sin(90-A) = cosA

sin²A + sin²B
= sin²A + cos²A
= 1
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