class 11 Math All topics Trigonometric Functions

In a $ΔPQR$, if $3s∈P+4cosQ=6$ and $4s∈Q+3cosP=1$, then the angle R is equal to

(a)

$65π $

(b)

$6π $

(c)

$4π $

(d)

$43π $

Similar topics

introduction to trigonometry

functions

some applications of trigonometry

quadratic equations

surface areas and volumes

introduction to trigonometry

functions

some applications of trigonometry

quadratic equations

surface areas and volumes

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