Trignometric Ratio Ex-8.3 Class 10

Find the values of the following trignometric ratios: (a) "cos"480^(@) (b) sin 1125^(@) ( c) tan(-480^(@)) ( d) "cosec"(-1200^(@))

Application Of Trigonometry Class 10 | CBSE Class 10 Height And Distance

There are trignometrical equations that are nonstandard in aspect in that the equation may contain dissimilar terms, say algebric as well as trignometric expressions, or three may be only one equation in more than unknowns. In such cases we make use of the extreme values of trignometric functions or algebric functions. In particular |sinx| le 1, |cos x| le 1 , and maxima/minima of quadratic expressions are widely made use of The equation (sin(pix)/6)=x^(2)-6x+10 holds for

Find the values of trignometric functions in Questions 6 to 10. sin765^(@)

Find the general solution of the trignometric equation 3^(1/2+log_(3)(cosx+sinx))-2^(log_(2)(cosx-sinx))=sqrt(2)

Find the mean of the following frequency distribution using step-deviation method. Class 0-10 10-20 20-30 30-40 40-50 Frequency 7 10 15 8 10

If secA=-17/8 and A lies in second quadrant, find the remaining trignometric ratios.

If cotA=4/3 and A lies in third quadrant, find the remaining trignometric ratios.

If sinA=-3/5 and A lies in third quadrant, find the remaining trignometric ratios.

If cosA=5/13 and A lies in fourth quadrant, find the remaining trignometric ratios.