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In a DeltaABC, if A=45^(@) and B=75^(@),...

In a `DeltaABC`, if `A=45^(@)` and `B=75^(@)`, then `a+sqrt(2)c=`

A

b

B

2b

C

3b

D

none of these

Text Solution

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The correct Answer is:
B
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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE
  1. If, DeltaABC, B = 90^(@), C = 60^(@), b=1 find a and c

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  2. In triangle ABC,a= 5,b=7 and sin A =3/4 how many such triangle are pos...

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  3. In a DeltaABC, if A=45^(@) and B=75^(@), then a+sqrt(2)c=

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  4. If in DeltaABC,(cosA)/(a)=(cosB)/(b)=(cosC)/(c) and side a=2, then th...

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  5. If in DeltaABC , a = 4,b=3, A = 60^(@) then c is a root of the equati...

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  6. If in a triangle ABC, 3sinA=6sinB=2sqrt3sinC then the value of /A=

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  7. A circle is inscribed in an equilateral triangle of side a. The area o...

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  8. If, in Delta ABC, angle A,B,C are in A.P. And b : c = sqrt(3) : sqrt(2...

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  9. If, in Delta ABC, a = 2b and A = 3B, then A :

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  10. If Delta ABC, is right angled at C, then: 4s (s - a)(s - b)(s-c) = ....

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  11. If sin (A + B + C) = 1, tan (A - B) = 1//sqrt(3) and "sec" (A + C) = 2...

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  12. If H is the orthocentre of the Delta ABC, then find AH.

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  13. If the side of a right-angled triangled are in A.P., then tangents of ...

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  14. If, in Delta ABC, a = 13 cm, b = 13cm, c = 5 cm, then cosC is

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  15. In the Delta ABCA gt B. If the measures of A and B satisfy the equatio...

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  16. In Delta ABC , a= 6 ,b=3 and cos (A-B) = 4/5 .Then are of triangle i...

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  17. If, in Delta ABC, tan A + tan B + tan C gt 0, then the triangle is

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  18. In a DeltaABC, tan A+tan B+tan C =6 and tan A tan B = 2, then the tria...

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  19. If, in Delta ABC, a^(4) + b^(4) + c^(4) = 2a^(2)(b^(2) + c^(2)) then :...

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  20. If, Delta ABC is right angled at C, then : tanAtanB = ....

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