nilai dari (tan 135°x sin 90°)+csc30°

(tg 135°x sin 90°) + cosec 30°=....
tg 135°= - tg (180°-45°) = - tg 45° = -1
sin 90° = 1
cosec 30°= 1/sin 30° = 1/0.5 = 2
jadi hasil (tg 135°x sin 90°) + cosec 30°= ( -1 x 1) + 2 = -1 + 2= 1