" 2718At "B=90^(@)" "I' "8" motecoset? "

A+B=90^(@) then sin A+sin B is

In right-angled DeltaABC , if angle B=90^(@) , AB = 6 , BC=8, then find AC.

In a right triangle ABC/_B=90^(@) if AC=10cm,BC=8cm then find the length AB

If (r)/(r_(1))=(r_(2))/(r_(3)) ,then A=90^(@)(b)B=90^(@)C=90^(@) (d) none of these

If 270^(@) lt A lt 360^(@), 90^(@) lt B lt 180^(@) , cos A =5//13 , tan B=-15//8 " then " cos (A+B)=

ABC is a right angled triangle where /_B = 90° . If AB=15 cm,BC= 8 cm then find cosec A.

Find the value of x: i) xcot(90^(@)+theta)+tan(90^(@)+theta)sintheta+"cosec"(90^(@)+theta)=0 ii) "cosec"(90^(@)+theta)+x costhetacot(90^(@)+theta)=sin(90^(@)+theta)

In any DeltaABC , prove that (i) tan""(B-C)/2=(b-c)/(b+c)cot""A/2 . (ii) If angleB=90^(@) , prove that tan(A/2)=sqrt(((b-c)/(b+c))) . (iii) If angleC=90^(@) , prove that tan((A−B)/2)/tan((A+B)/2)=(a-b)/(a+b) .