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IF SIN THETA +COSEC THETA =2 THEN FIND SIN 2 THETA+COSEC 2 THETA=?

 IF SIN THETA +COSEC THETA =2  THEN FIND
SIN2THETA+COSEC2 THETA=?

Grade:10

1 Answers

Arun
25763 Points
3 years ago
Dear student
 
sin theta + cosec thets = 2
 
sin theta +   1/ sin theta = 2
 
this is 2 if and only if sin theta = 1
 
then
also cosec theta= 1
 
hence
 
sin ^2 theta + cosec^2 theta = 1 + 1 = 2

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