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piyush kamal

· started a discussion

· 1 Months ago

sir (Question: 187980.0 )

any shortcut method

Question:
If a cot\(\theta\) + b cosec\(\theta\) = x2 and b cot\(\theta\) + a cosec\(\theta\) = y2 then the value of (a2 – b2) is —
Options:
A) 1
B) x4 - y4 
C) y4 - x4
D) 0
Solution:
Ans: (c)



Knowledge Expert

· commented

· 1 Months ago

Dear Student,

This is a right way to solved this question.

Keep learning with us!!
Regards,
Team Toprankers

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

This is a right way to solved this question.

Keep learning with us!!
Regards,
Team Toprankers
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