हिंदी

Z1 = 1 + i, z2 = 2 − 3i. Verify the following : z1+z2¯=z1¯+z2¯ - Mathematics and Statistics

Advertisements
Advertisements

प्रश्न

z1 = 1 + i, z2 = 2 − 3i. Verify the following : 

`bar("z"_1 + "z"_2) = bar("z"_1) + bar("z"_2)`

योग

उत्तर

z1 = 1 + i, z2 = 2 − 3i

∴ `bar("z"_1)` = 1 − i, `bar("z"_2)` = 2 + 3i

z1 + z2 = (1 + i) + (2 − 3i) = 3 − 2i

∴ `bar("z"_1 + "z"_2)` = 3 + 2i

`bar("z"_1) + bar("z"_2)` = (1 − i) + (2 + 3i)

= 3 + 2i

∴ `bar("z"_1 + "z"_2) = bar("z"_1) + bar("z"_2)`

shaalaa.com
Argand Diagram Or Complex Plane
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Complex Numbers - Exercise 1.3 [पृष्ठ १५]

APPEARS IN

बालभारती Mathematics and Statistics 2 (Arts and Science) [English] 11 Standard Maharashtra State Board
अध्याय 1 Complex Numbers
Exercise 1.3 | Q 9. (i) | पृष्ठ १५

संबंधित प्रश्न

Find the modulus and amplitude of the following complex numbers.

7 − 5i


Find the modulus and amplitude of the following complex numbers.

`sqrt(3) + sqrt(2)"i"`


Find the modulus and amplitude of the following complex numbers.

3


Find the modulus and amplitude of the following complex numbers.

`1 + "i"sqrt(3)`


Find the modulus and amplitude of the following complex numbers.

(1 + 2i)2 (1 − i)


If z = 3 + 5i then represent the `"z", bar("z"), - "z", bar(-"z")` in Argand's diagram


Express the following complex numbers in polar form and exponential form:

`1/(1 + "i")`


Express the following complex numbers in polar form and exponential form:

`(1 + 7"i")/(2 - "i")^2`


Express the following numbers in the form x + iy: 

`sqrt(3)(cos  pi/6 + "i" sin  pi/6)`


Express the following numbers in the form x + iy: 

`sqrt(2)(cos  (7pi)/4 + "i" sin  (7pi)/4)`


Express the following numbers in the form x + iy:

`7(cos(-(5pi)/6) + "i" sin (- (5pi)/6))`


Express the following numbers in the form x + iy:

`"e"^((-4pi)/3"i")`


Express the following numbers in the form x + iy:

`"e"^((5pi)/6"i")`


Find the modulus and argument of the complex number `(1 + 2"i")/(1 - 3"i")`


Convert the complex number z = `("i" - 1)/(cos  pi/3 + "i" sin  pi/3)` in the polar form


For z = 2 + 3i verify the following:

`("z" + bar"z")` is real


For z = 2 + 3i verify the following:

`"z" - bar"z"` = 6i


z1 = 1 + i, z2 = 2 − 3i. Verify the following : 

`bar("z"_1 - "z"_2) = bar("z"_1) - bar("z"_2)`


z1 = 1 + i, z2 = 2 − 3i. Verify the following :

`bar("z"_1."z"_2) = bar("z"_1).bar("z"_2)`


z1 = 1 + i, z2 = 2 − 3i. Verify the following :

`bar(("z"_1/"z"_2))=bar("z"_1)/bar("z"_2)`


Select the correct answer from the given alternatives:

The modulus and argument of `(1 + "i"sqrt(3))^8` are respectively


Select the correct answer from the given alternatives:

If `-1 + sqrt(3)"i"` = re , then θ = ................. 


Select the correct answer from the given alternatives:

If z = x + iy and |z − zi| = 1 then


Answer the following:

Find the modulus and argument of a complex number and express it in the polar form.

8 + 15i


Answer the following:

Find the modulus and argument of a complex number and express it in the polar form.

`(1 + sqrt(3)"i")/2`


Answer the following:

Find the modulus and argument of a complex number and express it in the polar form.

`(-1 - "i")/sqrt(2)`


Answer the following:

Find the modulus and argument of a complex number and express it in the polar form.

− 3i


Answer the following:

Find the modulus and argument of a complex number and express it in the polar form.

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


Answer the following:

Represent 1 + 2i, 2 − i, −3 − 2i, −2 + 3i by points in Argand's diagram.


Answer the following:

Convert the complex numbers in polar form and also in exponential form.

z = `(2 + 6sqrt(3)"i")/(5 + sqrt(3)"i")`


The polar coordinates of the point whose cartesian coordinates are (−2, −2), are given by ____________.


If x + iy = `5/(3 + costheta + isintheta)`, then x2 + y2 is equal to ______ 


If z = `5i ((-3)/5 i)`, then z is equal to 3 + bi. The value of ‘b’ is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×