[36:sin2A=sin A],[" is true when "A=],[" A "0],[" B "30" degree "],[" C "45" degree "]

sin2A=2sin A is true when A=0o(b)300 (c) 45o(d)60o

sin2A=2sinA is true when A= (a) 0^@ (b) 30^@ (c) 45^@ (d) 60^@

sin 2B = 2 sin B is true when B is equal to

Angle between the line (x+1)/1=y/2=(z-1)/1 and a normal to plane x-y+z=0 is (A) 0 degrees ( B) 30 degrees (C) 45 degrees (D) 90 degrees

In a triangle ABC, if the median and altitude from A trisect angle A, then (B-C) is (in degrees) equal to………. a) 0 degree b) 30 degree c) 60 degree d) 90 degree

The lowest temperature in the night in a city is one-third more than (1)/(2) the highest during the day.Sum of the lowest temperature and the highest temperature is 100 degrees.Then what is the lowest temperature? (a) 30 degrees (b) 40 degrees (c) 36degrees (d) None of these

Evaluate (i) sin 30 degree + cos 30 degree. (ii) tan 60 degree cot 60 degree

sin^2 45^@-sin^2 30^@ is equal to:

Use OF interval and illustration || Sin & Cos 18 degree , Sin & Cos 36 degree || Trigonometry identities with 3 angles and their derivation || Important Points

The value of x which stasfies the equation 2 cosec square 30 degree + x sin square 60 degree minus 3/4 tan square 30 degree = 10