Math, asked by Keesan4658, 1 year ago

If A=30°,verify that sin 2A=2sinA cosA

Answers

Answered by AsraIbrahim

84

sin2(30)=2sin(30)cos(30)
sin60=2(1/2)(root3/2)
root3/2=root3/2

Answered by chandradar11gmailcom

43

2sinAcosA=2×sin30cos30=2×1/2×√3/2=√3/2=sin60=sin2×30=sin2A

Previous Question

Next Question

Similar questions

History, 8 months ago

describe the main cause of declining of mughal empire in our country...

Geography, 8 months ago

rate of erosion is higher in arid and Semi arid area give reason ...

English, 8 months ago

have taken lunch in passive form...

Math, 1 year ago

Which term of A.P.3,8,13,18......will be 55 m9re than its 20th term?

Math, 1 year ago

IN Traingle abc ab=6 root 3 cm, ac=12, bc=6cm find measure angle a...

Science, 1 year ago

how does the heat produced by a resistor depend on current, resistance of the resistor and time for which the current flows through the resistor...

Math, 1 year ago

hi guys my exams are coming from 16 i am in grade 9 and these are my final exams so plz help me to make my study table plz i am week in maths...

English, 1 year ago

enumerate the importance of an oral language rich classroom for language learning...