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Harish Kumar

· started a discussion

· 1 Months ago

EASY SOLUTION (Question: 368336.0 )

It is a time-consuming solution. How can we compress it?

Question:

If a cot θ + b cosec θ = x2 and b cot θ + a cosec θ = y2 then the value of (a2 – b2) is–

Options:
A)

1

B)

x4 – y4

C)

y4 – x4

D)

0

Solution:

Ans:(c)

   

Romit Kanwal

· commented

· 1 Months ago

put angle 45..then squaring both equation and subtract

Knowledge Expert

· commented

· 1 Months ago

Dear student
Given answer is correct
This type of a question introduce to make aware different types of question,
Its your own profit.

Best wishes
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