Question

15.Given √2+√3 4+√3 = 7 7 a√2+b√3+c√6 + d. Then, find a, b, c and d.​

Answer 1

Given

a

:

b

=

2

:

3

,

b

:

c

=

4

:

5

,

c

:

d

=

6

:

7

a

:

b

=

2

×

8

:

3

×

8

=

16

:

24

b

:

c

=

4

×

6

:

5

×

6

=

24

:

30

c

:

d

=

6

×

5

:

7

×

5

=

30

:

35

s

o

a

:

b

:

c

:

d

=

16

:

24

:

30

:

35

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