Solve both the question of 21
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this is the second one
first one I m trying to do
first one I m trying to do
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Anonymous:
yup..
square both sides in both the equations
then simplify the fisrt eq
then 2 eq mein sin^2 ko cos^2mein convert krna and solve
take -sign common
hence proved
thnks...i think this time i will solve it..
yeah
as ur reward i will mark ur answer branliest
thnku
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