Question

Show that Cos45.cos60-sin45.sin60​

Answer 1

Answer:

given below... plz mark it as brainliest

Step-by-step explanation:

By rearranging,

cos45°.sin45° = cos60°.sin60°........ (i)

Since,

cosA × sinA = 1

Hence,

Equation (i) =

1 = 1

R.H.S = L.H.S

Hence proved

Answer 2

Step-by-step explanation:

trigonometry ratio

sin cos tan

p b p

h h b

cosic sec cot

mean p Pakistan booka pyaca

hindustan hara barara

p mean perpendicular

h mean Hypentounes

b mean base

plz follow me