Question

यदि 12 कोस थीटा प्लस साइन थीटा इज इक्वल टू 15 हो तो कॉस थीटा का मान क्या होगा​

Answer 1

Answer:

This can be solved easily once we visualise it.

Explanation:

A)wkt, tanx = perpendicular(p)/base(b) .....(1)

B)We are given tanx=5/12 .....(2)

C)On comparing the quantities we get that p=5 and b=12

D)We require the value of hypotenuse(h),

for this we apply the Pythagoras theorum i.e,

$h2=p2+b2</p><p>⇒ h2 =52+122</p><p>⇒h2=25+144</p><p>⇒h2=169</p><p>⇒ h=√169</p><p>⇒ h=13$

Hence , sinx = perpendicular/hypotenuse=p/h = 5/13cosx = base/hypotenuse=b/h = **12/13* .... *(Answer).............................................................................................................I hope this helps :)