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CBSE Class 10 Answered

if θ is an acute angle and tan θ + cot θ = 2, then the value of sin³θ + cos³θ is
Asked by ab8657430691 | 06 Dec, 2021, 06:56: PM
answered-by-expert Expert Answer
tan space straight theta space plus space cot space straight theta space equals space 2 tan space straight theta space plus space fraction numerator 1 over denominator tan space straight theta end fraction space equals space 2 tan squared space straight theta minus 2 tan space straight theta plus 1 equals 0 open parentheses tan space straight theta minus 1 close parentheses squared equals 0 tan space straight theta equals 1 straight theta space equals space 45 so comma sin space straight theta space equals space fraction numerator 1 over denominator square root of 2 end fraction cos space straight theta space equals space fraction numerator 1 over denominator square root of 2 end fraction sin ³ straight theta space plus space cos ³ straight theta space equals space fraction numerator 1 over denominator 2 square root of 2 end fraction plus fraction numerator 1 over denominator 2 square root of 2 end fraction equals fraction numerator 1 over denominator square root of 2 end fraction
Answered by Arun | 07 Dec, 2021, 09:38: AM

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CBSE 10 - Maths
2/x+2/3y=1/6; 3/x+2/y=0
Asked by aditikaldate7 | 21 Apr, 2024, 03:16: PM
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CBSE 10 - Maths
ABCD is a rectangle in which diagonal AC is equals to 17 cm angle BCA is equals to thitha and sin theta is equals to 8/17 find the area of rectangle ABCDE (ii) the perimeter of rectangle ABCD
Asked by pathaksuman622 | 21 Apr, 2024, 11:56: AM
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CBSE 10 - Maths
PQ is a chord of length 8 cm to a circle of radius 5 cm. The tangents P and Q intersect at a point T. Find the length of the tangent TP.
Asked by yalagondanikhil | 16 Apr, 2024, 12:25: PM
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CBSE 10 - Maths
if one of the zeroes of quadratic polynomial F(x) = 4x² - 8kx - 9 is equal in magnitude but opposite in sign, find K
Asked by rrajansinghakb199 | 08 Apr, 2024, 05:12: PM
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CBSE 10 - Maths
express 15.265 in p/q form?
Asked by nagalaxmidurgarao937 | 08 Apr, 2024, 01:42: PM
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CBSE 10 - Maths
the poles AB and CD of different heights are standing vertically on the ground level from a point P on the line joining the foots of the pole on the level of ground the angle of elevation to the top of the pole are founded to be complementary the of the CD and the distance PD 20√3m and 20m respectively if the BP is 10m then find the length of AB and the distance AC between the tpo of the poles
Asked by mraniruddha03 | 02 Apr, 2024, 06:44: PM
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CBSE 10 - Maths
from the pair of linear equations in the following problems and find their solution graphically 10 students of class 10 to part in a mathematic quiz if the number of girls is for more than the number of boys find the number of boys and girls who took part in the quiz
Asked by muttenenimalleswarrao | 29 Mar, 2024, 08:32: PM
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CBSE 10 - Maths
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Asked by sonawnerohan01 | 23 Mar, 2024, 12:25: PM
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CBSE 10 - Maths
The distance of the point (5,-2) from x-axis will be :-
Asked by pathakvaishnavi9139 | 23 Mar, 2024, 10:45: AM
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CBSE 10 - Maths
income of families locality are given. find the mode of the data (income in rupees)=1-200,201-400,401-600,601-800,801-1000 and number of families are 7,10,16,12,3
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Asked by mustafahssn786 | 23 Mar, 2024, 06:25: AM
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