Home
Class 12
PHYSICS
The value of cos0 cos1^(@)cos2^(@) ……………...

The value of `cos0 cos1^(@)cos2^(@)` ……………. `cos179^(@) cos180^(@)` is :

A

`-1`

B

`0`

C

`1`

D

`(1+sqrt(2))/(2)`

Text Solution

AI Generated Solution

The correct Answer is:
To find the value of the product \( \cos 0^\circ \cos 1^\circ \cos 2^\circ \ldots \cos 179^\circ \cos 180^\circ \), we can follow these steps: ### Step 1: Understand the cosine function The cosine function, \( \cos \theta \), is defined for angles from \( 0^\circ \) to \( 180^\circ \). Notably, \( \cos 90^\circ = 0 \). ### Step 2: Identify the product We are looking at the product: \[ P = \cos 0^\circ \cos 1^\circ \cos 2^\circ \ldots \cos 179^\circ \cos 180^\circ \] ### Step 3: Notice the presence of \( \cos 90^\circ \) In the product, we can see that \( \cos 90^\circ \) is included. Since \( \cos 90^\circ = 0 \), this means that the entire product will be zero because multiplying any number by zero results in zero. ### Step 4: Conclude the result Therefore, we can conclude that: \[ P = 0 \] ### Final Answer The value of \( \cos 0^\circ \cos 1^\circ \cos 2^\circ \ldots \cos 179^\circ \cos 180^\circ \) is \( 0 \).

To find the value of the product \( \cos 0^\circ \cos 1^\circ \cos 2^\circ \ldots \cos 179^\circ \cos 180^\circ \), we can follow these steps: ### Step 1: Understand the cosine function The cosine function, \( \cos \theta \), is defined for angles from \( 0^\circ \) to \( 180^\circ \). Notably, \( \cos 90^\circ = 0 \). ### Step 2: Identify the product We are looking at the product: \[ ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TEST PAPERS

    RESONANCE ENGLISH|Exercise PART - II PHYSICS|106 Videos
  • SIMPLE HARMONIC MOTION

    RESONANCE ENGLISH|Exercise Advanced Level Problems|13 Videos
  • TEST SERIES

    RESONANCE ENGLISH|Exercise PHYSICS|130 Videos

Similar Questions

Explore conceptually related problems

The value of cos 65^(@)cos 55^(@)cos5^(@) is

cos 1^(@) + cos2^(@) + cos 3^(@) + ….+cos 180^(@) is equal to

Knowledge Check

  • The value of "cos"1^(@)."cos"2^(@)."cos"3^(@)......."cos"179^(@) is

    A
    `1/sqrt(2)`
    B
    0
    C
    1
    D
    -1
  • Similar Questions

    Explore conceptually related problems

    The value of cos^(-1)(cos10) is

    The value of cos 1^@ cos 2^@ cos 3^@... cos 179^@ is

    The value of cos12^(@)cos24^(@)cos36^(@)cos48^(@)cos72^(@)cos84^(@), is

    The value of cos (2Cos^-1 0.8) is

    Find the value of cos 12^(@)+cos 84^(@)+cos 156^(@)+cos 132^(@)

    Value of cos0^(@). Cos 30^(@) . cos45^(@) . cos60^(@) . Cos90^(@) is __________.

    The value of cos^(2)10^(@)-cos10^(@)cos 50^(@)+cos^(2)50^(@) is k/2 . The value of k is ________.