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sin @=2
cos @=1
cosec @=1/2
sec @=1
cot @=1/2
cos @=1
cosec @=1/2
sec @=1
cot @=1/2
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tan theta= p/b=2/1
then. h^2=2^2+1^2=5
h=√5
sin theta=p/h=2/√5 ×√5/√5=2√5/5
cos theta=b/h=1/√5
cosec theta=h/p=√5/2
sec theta=h/b=√5/1=√5
is your answer
then. h^2=2^2+1^2=5
h=√5
sin theta=p/h=2/√5 ×√5/√5=2√5/5
cos theta=b/h=1/√5
cosec theta=h/p=√5/2
sec theta=h/b=√5/1=√5
is your answer
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