Question

5. If x= a sec and y = b cos then find xy = ?​

Answer 1

Answer:

xy = AsecBcos

mark brainliest!!!

Step-by-step explanation:

Answer 2

$\rm{ {xy = ab}}$

Step-by step explanation:

★Given -

• $\rm{x= a \: sec \theta\:\:\:\: (1)}$
• $\rm{y = b \: cos \theta \:\:\:\: (2)}$

★To find -

• $\rm{xy}$

★Solution -

(1) × (2),

$\longmapsto \rm{xy = a \: sec \theta \times b \: cos \theta}$

$\longmapsto \rm{xy = a \: \dfrac{1}{ \cancel{cos \theta} } \times b \: \: \cancel{cos \theta}}$

$\longmapsto \rm{ \orange {xy = ab}}$

★More to know -

• $\rm{sin \theta \: = \dfrac{1}{cosec \theta} }$

• $\rm{cos \theta \: = \dfrac{1}{sec \theta} }$

• $\rm{tan \theta \: = \dfrac{1}{cot\theta} }$