Question

Fill in the blanks :
1) The solution set of 2x+4y=8 and x+2y=4 is _________.
2)The distance of A(x,y) from origin is ________.
3) The value of tan20°•tan25°•tan45°•tan65°•tan70° is _________.
4) In∆ABC,AB=3,BC=4,AC=5,then the radius of the circle touching all the three sides is _______.
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Answer 1

Answer:

1) 1/2 , 1/2 , 1/2

2)

Step-by-step explanation:

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Answer 2

Answer:

1)0

2)√X^2+y^2

3)1

4)1

Step-by-step explanation:

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