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ICSE Class 9 Answered

Please solve this question. Correct answer is option (c).
question image
Asked by Mohammed | 13 Oct, 2018, 04:18: PM
answered-by-expert Expert Answer
cos x = sin y......x and y are acute 
so, x = y = 45 
45 + 45 = 90
Answered by Arun | 13 Oct, 2018, 05:28: PM
ICSE 9 - Maths
Asked by fernandesclarissa12 | 14 Oct, 2021, 11:55: AM
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ICSE 9 - Maths
Asked by Mohammed | 13 Oct, 2018, 04:18: PM
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ICSE 9 - Maths
I f space s e c space A equals square root of 2 space f i n d space t h e space v a l u e space o f colon space fraction numerator 3 cos squared A plus 5 tan squared A over denominator 4 tan squared A minus sin squared A end fraction
Asked by Barnalidipaksagnik | 11 Feb, 2018, 09:44: AM
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ICSE 9 - Maths
Asked by PRADEEP KUMAR | 15 Jan, 2018, 07:30: PM
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ICSE 9 - Maths
Asked by Lukesh | 11 Jan, 2018, 10:07: PM
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