Find the value of
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Hey there !!!!!!!!!!!!
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=sinA-sinB/cosA+cosB + cosA-cosB/sinA+sinB
= (sinA-sinB)(sinA+sinB)+(cosA-cosB)(cosA+cosB)/(cosA+cosB) (sinA+sinB)
using (a+b)(a-b) = a²-b²
= sin²A-sin²B+cos²A-cos²B/(cosA+cosB)(sinA+sinB)
using sin²α+cos²α=1
= sin²A+cos²A-(sin²B+cos²B)/(cosA+cosB)(sinA+sinB)
= 1-1/(cosA+cosB)(sinA+sinB)
=0
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Hope this helped you......
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
=sinA-sinB/cosA+cosB + cosA-cosB/sinA+sinB
= (sinA-sinB)(sinA+sinB)+(cosA-cosB)(cosA+cosB)/(cosA+cosB) (sinA+sinB)
using (a+b)(a-b) = a²-b²
= sin²A-sin²B+cos²A-cos²B/(cosA+cosB)(sinA+sinB)
using sin²α+cos²α=1
= sin²A+cos²A-(sin²B+cos²B)/(cosA+cosB)(sinA+sinB)
= 1-1/(cosA+cosB)(sinA+sinB)
=0
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Hope this helped you......
Pranothi1:
Thanks again
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