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The value of [cos (270^(@) +theta)cos (9...

The value of `[cos (270^(@) +theta)cos (90^(@) -theta)-sin (270^(@) -theta)cos theta)` is-

A

`-1`

B

`1/2`

C

1

D

0

Text Solution

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The correct Answer is:
C
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CHHAYA PUBLICATION-MCQ's-QUESTION PAPER 7
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  2. If sin ^(3) x sin 3x= sum (m=0)^(n) c(m) cos mx is an identity in x, w...

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  3. The value of [cos (270^(@) +theta)cos (90^(@) -theta)-sin (270^(@) -th...

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  4. If a, b, c are the sides of the triangle ABC such that a^(4) +b^(4) +c...

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  5. In a triangle ABC, a =sqrt3 +1, B = 30^(@)and C= 45^(@), then the valu...

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  6. If tan A =1/2 and tan B=1/3, then the value of tan (2A+B) is-

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  7. The value of [cos (A-B) cos (A+B) -sin (A-B) sin (A+B)] is-

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  8. The maximum and minimum values of [4 cos x^(2)cos ((pi)/(3)+ x^(2))cos...

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  9. If positive integers a(1), a(2), a(3),… are ion A.P. such that a(8) +a...

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  10. The number of arrangements of the letters of the word BANANA in which ...

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  11. For all complex numbers z(1),z(2) satisfying |z(1)|=12 and |z(2) -3-4i...

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  12. Suppose a,b, c are in A.P. and a^(2) , b^(2),c^(2) are in G.P. if a lt...

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  16. The real numbers that satisfy the equation x^(2) +6 |x| -9 =0 are-

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  17. The value of [(1+i)^(6) +(1-i) ^(6)] is-

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  18. The value of the sum 11^(3) +12 ^(3)+…+20^(3)-

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